· Assuming a total plasma V of 3-5 L, only ~ 9-15 ml O2 can be carried in a dissolved state. · Resting tissues require > 250ml O2 per min. 2. In combination with haemoglobin within the RBC (greater than 98%) · Haemoglobin within each of the 4-6 billion RBC allows blood to transport ~ 70 times more O2 Haemoglobin saturation 1 molecules haemoglobin = 4 molecules of O2 O2 + haemoglobin = oxyhaemoglobin Haemoglobin oxygen = deoxyhaemoglobin Binding of O2 to Hb depends on PO2 in blood and the bonding strength (affinity) between Hb and O2. O2-hb disassociation curve Oxygen-haemoglobin Dissociation curve High drop in PO2 associated with only slight changes in O2 saturation. As PO2 of blood increases saturation increases. As PO2 of blood decreases
*Fruit- to enclode the seeds, to protect seeds 4. What are the main functions of a root system? Main functions of a root system are to take in, absorb water and minerals, to hold the plant firmly in the soil. 5. What happens in the process of photosynthesis? For the process of the photosynthesis is sunlight necessary. Water from the soil and carbon dioxide from the air are converted into sugars and after carbohydrates. Durning the process oxygen is formed and relased into the air. 6. Name the reproductive organs of a flower. How they function? reproductive organs of the flower are the stamens and the carpel. The stamens produce men sex cells and the carpel produces the female sex cells. 7. Seed function: to develope into to a new plant, to consist of embryo and foodstore. 8. Name the conditions for germination. The conditions that is needed for germination are: * the right temperature in the soil
Air temperature SBS is a combination of Air humidity ailments (a syndrome) Air pressure associated with an individual's place of work Ventilation and is presumably connected with overstress Content of oxygen in air of organism’s adaption mechanisms. Air ionization Building occupants complain of symptoms Heat exchange between associated with acute discomfort, e.g., the environment and human headache; eye, nose, or throat irritation; dry
In Tallinn, for example, the air there is so polluted, that you can hardly breathe there. If the authorities put bins everywhere in the streets, our cities would be cleaner. The second thing is, that people still drop litter on the ground, even if there is a bin somewhere nearby. If we didn't build so much houses all around cities, we could save money from that and better build animal parks, green areas and playgrounds for children. If there were more green areas, people would have more oxygen. All in all, we must understand the importance of oxygen and where must litter go, then we could have better atmosphere and people wouldn't be worried about their health.
• Generate a glow • The strongest auroras are quite bright • The aurora occurs above: altitudes of 80 km infrequently above 500 km normal altitudes 110 and 200 How the Lights got their colors? • Every gas creates a different color • neon lights: helium – pink/white neon - red/orange argon - lavender krypton - gray/green The colors of auroras • Determined by gases in the Earth’s atmosphere • Solar particles collide with different gases • Oxygen (300km) – a rare red aurora • Oxygen (100-300km) – yellow-to-green aurora Do the Northern Lights emit sound? • Subject of discussion • Proven that people can hear natural auroral sounds • Energetic particles produce strange „clapping“ noise • Do not occur every northern lights outburst • Usually brief and faint • https://www.youtube.com/watch?v=eHvdZdsIZxg Conclusion • How the Northern Lights appear
I'd like to present the main issues of our planet and today i'll name 5 of them. These are air pollution, water pollution, endangered animals, deforestation and rubbish. Air pollution Firstly, lets talk about air pollution, which endangeres our life in cities and also the forests near by. Cars and factories blow poisoned gas in the air and it mixes with the oxygen, so the air that we breathe, becomes dangerous to our health. The ozone layer around the Earth, there is a special type of oxygen called ,,ozone". Ozone is important because it stops ultraviolett radiation from the sun. Many aerosol sprays and factories destroy ozone and they have made a very big hole in the ozone layer. This means that too much ultraviolet radiation now enters the Earth. This is very dangerous because it can cause cancer. Poisonous chemicals also
their activity in soil. The availability of N, P and K required for plants as well as microbes in soil determines the fertility level of soil. On the other hand soil micro flora has greater influence on the soil fertility level. 3. Soil moisture: It is one of the important factors influencing the microbial population & their activity in soil. Water (soil moisture) is useful to the microorganisms in two ways i.e. it serve as source of nutrients and supplies hydrogen / oxygen to the organisms and it serve as solvent and carrier of other food nutrients to the microorganisms. Microbial activity & population proliferate best in the moisture range of 20% to 60%. Under excess moisture conditions / water logged conditions due to lack of soil aeration (Oxygen) anaerobic microflora become active and the aerobes get suppressed. While in the absence of adequate moisture in soil, some of microbes die out due to tissue dehydration and some of them change their forms into
These compounds are causing deformage in marine animals and are storaged in their fatty tissues. They have also been found in organisms throughout the world oceans because they are dispersed quickly by winds and currents. Another problem that affects the marine life is excess phosphorus and nitrogen flow into the sea from towns, factories and other man-made sources which cause intense algae growth. Algal blooming consumes large amounts of dissolved oxygen and in areas with poorer water exchange the oxygen runs out and living organisms will not survive there. Also, the author points out a problem considering heavy metals which increase the water toxicity. It is estimated that about half of heavy metal inputs to the North and Baltic Seas originate as air pollutants. Heavy metals are indestructible and do not break down. When they sink to the bottom and stay strapped there, they may become toxic to the organisms in
*Change ignorant attitude to our surroundings. Dead forests *Acid rain *Less natural habitats. *Campaigns against factories. *Extreme dryness *Lack of Oxygen. *Deserts are expanding. Situation Reason Consequences Suggestions to solutions The temperature · Global warming · The ice of North · Environmental is rising · Greenhouse Pole is melting friendly
are a common sight, although they don't appear as often as in northern Norway. What exactly are the Northern Lights? The Northern Lights occure when large numbers of electrically charged particles stream towards the Earth along its magnetic field and collide with the highest air particles. The air then lights up. The resulting colours reflect in gases we find up there, the most usual yellow-green colour is coming from oxygen. Red colouring is also due to oxygen with a contribution from nitrogen. The violet we often see is due to nitrogen, as is most blue colouring. The charged particles originate from the sun, and it is the 'weather' conditions on the sun that decide whether or not we will see the aurora. Particles can stream out from the sun and some are captured by the Earth's magnetic field and find their way into the polar regions. How high up are the Northern Lights? Most aurorae occur between 90 and 130
on: solubility of the gas in the liquid temperature of the liquid. Did You Know...? The solubility of a gas in blood and the temperature of blood are relatively constant. Differences in the partial pressures of gases in the aveoli and in the blood create a pressure gradient across the respiratory membrane. This difference in pressures leads to diffusion of gases across the respiratory membrane. The greater the pressure gradient, the more rapidly oxygen diffuses across it. Task · How does exercise increase the pressure gradient at the respiratory membrane? Response & Adaptation · Response (acute) immediate response of systems as a result of exercise response can change with intensity, system changes return to resting values once exercise bout has ceased, or shortly after. · Adaptation (chronic) more permanent changes as a result of training adaptations will resist change but will revert to previous
I shall only take 3 minutes of your time. Let me begin with the word enviroment and what it means! It means surroundings in which people, animals and plants exist. These are the things that we need, to be alive, but they are also many man-made things and technical progresses that harm the nature. Therefore we can´t live on this planet without basic components which are needed for human existence - air, water and soil. Firstly air, which is mostly a mixture of oxygen and nitrogen. People, animals and plants can ´t live without air. Without oxygen there would be no fire. So we can see, that air is the basic condition for life on the Earth. Did you know that till 18th century people didn´t know composition of the air? They only used the knowledge of moving the air. Turning to water which covers over 71 % of Earth´s surface. It is also in underground and, naturally, in the air. Even clouds consist of water steam. People, animals and plants couldn´t
bottom of the sea. Deep sea animals Deep sea animals live in the marine ecosystem or in oceans. If you look at the marine biology, you will find millions of species of sea animals. The marine life is a large resource that offers tourism, research and recreation for many countries across the globe. Marine life helps to determine the very nature of our planet. All the Deep Sea Animals along with other organisms such as algae and corals contribute to the oxygen cycle and regulate our earth's climate, this is why the marine ecosystem is considered to be very delicate and it needs to be protected. All these animals live in saltwater habitats. They live in or near rock pools, the ocean, beaches, mangroves and sand dunes. Deep sea plants Deep sea plants provide food, vegetation for other inhabitants by offering a favorable environment for microfauna and other sea organisms to develop. The microfauna are eaten by fish and other sea inhabitants.
Elva Gümnaasium Hapnik Referaat keemiast Karl-Gabriel Hiie 9.C klass 2013/2014 õppeaasta Sisukord Sisukord..........................................................................................2 Hapnik.............................................................................................3 Üldiseloomustus......................................................................3 Avastamine..............................................................................3 Saamine...................................................................................3 Omadused................................................................................3 Kasutamine..........................................................................3-4 Osoon ja Osoonikiht............................................
Aurora Australis in the south flows of particles and magnetism mirrorlike images that occur at the same time General information result of collisions between gaseous particles in the Earth's atmosphere with charged particles released from the sun's atmosphere the earth's magnetic field is weaker at either pole and therefore some particles enter the earth's atmosphere and collide with gas particles Cause highaltitude oxygen: red most common yellowishgreen Appearance nitrogen: blue/purple northern/southern hemisphere Iceland, Norway, Canada, Alaska, Greenland no light pollution clear nights local midnight Where? When? Jupiter Saturn On other planets http:// www.youtube.com/watch?v=FcfW http://www.northernlightscentre.ca/northernlights.html http://www.loc.gov/rr/scitech/mysteries/northernlights.html http://en.wikipedia
WATER POLLUTION The causes of water pollution sewage and wastewater; marine dumping; industrial waste; oil pollution; Sewage and wastewater contains urine and laundry waste pollute the environment diseases TREATMENT water treatment plants Stop using toxic household products! Marine dumping garbage-> the oxygen in the water could be depleted bottles, plastics, bags-> can suffocate or choke sea animals TREATMENT cleaning water Do not throw anything into water! Industrial waste toxic chemicals causes also air pollution TREATMENT fit filters to chimneys treatment plants Oil pollution spilled oil spoil drinking water Birds' feathers-> stuck with oil-> drown can blind an animal TREATMENT cleaning water with skimmers Being more careful when tankers trantsport oil! How to prevent water pollution?
Psychoanalysis (sub-consciousness) Behaviorism (behavior can be studied and explained) Humanism (the human dimension of psychology) Transpersonal psychology (hippie psychology) Hierarchy of human needs http://en.wikipedia.org/wiki/Maslow's_hierarchy_of_needs D-needs and B-needs Basic needs (D = deficit) physiological safety beloning esteem Higher need (B = being) self actualization What a man can be, he must be! Physiological needs Homeostasis oxygen water protein salt, sugar, calcium ... In Maoist China the most basic need was belonging Safety, love and esteem Stability, structure, order Community, affection Status, dignity, reputation Once the D-needs are satisfied they are no longer motivating. Beyond basic needs What a man can be, he must be! Self-actualization, being need Depends on the satisfication of D-needs Never fully satisfied Thank you! Questions?
But how many of us realize that this has become irrelevant in today’s world? Air pollution is the addition of any harmful substances to the atmosphere, which causes the damaging of the environment, human health and the quality of life. Firstly, we should use green methods of powering like wind energy and landfill gas energy. This would reduce the amount of harmful gases. Another useful suggestion would be to plant trees. In this way we can increase the source of breathable oxygen. Unfortunately, many companies are contributing to deforestation. Finally, it would help if we put taxes on carbon emissions or higher taxes on gasoline. In this way people and companies will have greater incentives to conserve energy and pollute less. In conclusion, there are many ways to pollute the air less. We all have to do whatever we can to solve this major problem. As Shimon Peres said “If a problem has no solution, it may not be a problem.”
driving cars. Vehicles emit a lot of harmful gases into the air. Every family member does not need his or her own car. One car for the whole family would minimise the number of cars in cities and air pollution levels will come down. Secondly, people have to recycle. It would help reduce factories work. It will emit less harmful gases into the air. Finally, we should plant more trees in cities and also create more national parks. They produce oxygen. In conclusion, there are many ways to make cities better places to live. We all need to do something, even a little thing can help. Start with youself recycle, use the public transport and plant at least one tree in your life.
We have a large ash mountains thanks to burning of oil shale. To reduce pollution we need to decrease mining of oil shale and shale-based electricity producing. Air pollution the biggest air pollution is in large cities. It´s caused by big factories, a lot cars and deficient environment ordinance. To decrease air pollution we need to use less cars and more public transport. Eutrophication It means water enrichment of nutrient. In eutrophic water there is less oxygen and water quality low. There are some things to improve it: · To disable phosphate use in detergents · Eliminate sources of pollution Example, Estonia eutrophic lakes are Võrtsjärv and Vasula järv. Excessive tree felling Peoples do very often clear cutting and thanks for it animals will lose their place where they live. To decrease this problem we need to do less clear cutting and use less things what is made from wood. ära plakatile kirjuta, lihtsalt pärast loe see ette:
How to live healthy Good health isn't just about healthy eating and exercise it also includes being positive, confident and a healthy lifestyle. If you want to live healthy, you should drink a lot of water. Water is needed to carry out our body functions, remove waste and carry nutrients and oxygen around our body. Men should drink about 3 liters water a day, for women it's about 2 liters. Also, you should have enough sleep. If you are tired you eat more. Sleep is a key to a healthy lifestyle, and can benefit your heart, weight and mind. People who do regular activity have a lower risk of heart disease, stroke, and cancer. Choose walking over transport for close distances and climb the stairs instead of taking the lift. When you enjoy the sports, you'll naturally want to do them
They decided to live in Tokyo. Tokyo was a big city then and they lived very individuaal life in the garage. In Tokyo, there was a car event. The car event's name was Tokyo Drift. One day, five cars met each other and they decided to make career together. They went to Civic's garage, because his had the biggest and there they tuned each ohter. All got 6.0 turbo engines with professional transmissioon and the best thing was NOS. It means nitro and oxygen system. They tuned the bodies too. All cars got sport bumpers. And then all began. They won lots of races and they changed the best of winners. Other cars didn't like that thing. Other was thought, how to destroy Honda family. Civic's friend told this plan to Civic and Civic told his family. Honda family run away to Europe with the won money, what they had won and lived happily ever after.
Kirjalik Ülesanne- Mittemetallid a) Hapniku ja vesiniku füüsikalised omadused: Hapnik: Värvitu Lõhnatu Maitsetu 8 elektroni, 8 prootonit ja 8 neutronit Välises elektronkihis on 8 elektroni Tihedus on 1,1321kg/m3 Keemistemperatuur –183 °C.1 Vesinik: Värvitu Lõhnatu Maitsetu 1 elektron, 1 prooton ja 1 neutron. Tihedus on 0,0899 kg/m3 Keemistemperatuur -253 °C.2 b) Miks on hapnik elusorganismidele oluline? Selgita koos reaktsioonivõrranditega. Hapnik on elusorganismidele oluline, sest see vabastab kehas toitainetest energiat. Energiat vajavad rakud, et tagada oma elutegevuse korrektne talitlus. Hingamise jääkproduktis on süsihappegaas ja vesi. 3 Samuti on vaja hapniku fotosünteesiks. Rohelised taimed saavad oma eluks vajalikud orgaanilised ained ise sünteesida lih...
character, smoke would have billowed from her ears.(page 53) 3.Clamber- eest ära minema, põgenema As I clambered out of her way, a dark shape vaulted over the deck railing.(page 345) 4.Auditory- kuulmine, kuulmis Visual and auditory hallucinations.(page 65) 5.Cord- pael, nöör A moment of silence as she fingered a long corded necklace.(page 66) 6.Mope- norutama, tusatsema You’ll get a lecture on moping around.(page 71) 7.Oxygen- hapnik Then I sat cross-legged on my bed, gulping oxygen.(pages 116 and 117) 8.Proverbial- üldtuntud I’d led the proverbial sheltered life.(page 117) 9.Disembodied- maisest kehast vabanenud, eemaldunud I’d seen a disembodied hand the second morning and heard a voice later that day. (page 157) 10.Impressionable- kergesti mõjutatav, mõjutatavad At school, I imagine girls won’t look at him twice and here he is, with a pretty girl, young, impressionable, trapped-(page 248) 11.Profanity- vandumine, vandumist
FOOD FOR SPORT Eating right can help energize your workout. What is the best thing to eat before exercising for energy and endurance? You need quality carbs, lean protein, heart-healthy fats, and fluids. Your muscles rely on carbohydrate foods like breads, cereals, pasta, rice, fruits, and vegetables for quick energy. You need protein for your muscles and for your blood cells, which bring nutrients and oxygen to your muscles. You also need fluids, or your body will have a hard time performing at its best. Is there an ideal meal to eat before exercise? There's no one meal that you need to eat before working out. Instead, focus on these 5 things: Low fat Moderate in carbs and protein Low fiber Includes fluids Made up of familiar foods that you tolerate well A grilled chicken sandwich or a slice of cheese pizza might fit the pregame
Unpolluted rain has a pH level over 5.7, so it is slightly acidic. Affected areas Places significantly impacted by acid rain around the globe include most of eastern Europe from Poland northward into Scandinavia, the eastern third of the United States and southeastern Canada. Other affected areas include the southeastern coast of China and Taiwan Causes · It is caused when sulfur dioxide and nitrogen oxides are released into the air. In the atmosphere they react with water, oxygen and other chemicals to form more acidic pollutants, known as acid rain. Sulfur dioxide and nitrogen oxides dissolve very easily in water and can be carried very far by wind. As a result, the two compounds travel long distances where they become part of the rain, sleet, snow or fog. SO2 and NOx come mainly from power stations and factories burning fossil fuels, or from motor vehicles.
- To warm up soojenema - Efficiency tööjõudlus, kasutegur, tõhusus - (suitable) design (sobiv) konstruktsioon - To operate töötama - Every other stroke iga teine fakt - Aeroplane lennuk - Aircraft õhusõiduk - To suck sisse imema, tõmbama - Combustion chamber põlemiskamber - To drive juhtima, käivitama - To escape vabanema, pääsema, põgenema - Nozzle toruots, nokk, tila, düüs - Oxygen hapnik - Front engine eesmootor - Rear engine tagamootor - Four-wheel drive nelikvedu - Spacecraft kosmoselaev - Front engine driving front wheels = FF esiratta veoga eesmootor - Top dead centre = TDC ülemine surnud seis = ü.s.s. - Bottom dead centre = BDC alumina surnud seis = a.s.s. - Kfkfkkfkfkfkfkfkfkfkfkfkfkfkfkfkfkfkfkt tt t tjvjjkf tiif rrnttmf f
and have they chess game. There they both mentally plan a battle and realize that in these circumstances Holmes would lose. Holmes has no other options and blows soot from his pipe at Mortiarty so he has a chance to grab him and throw both of them over the balcony, into the waterfall. At that point it seems like they both die. (The thrilling escape from death) Some time goes by and Watson recieves a package, inside is Mycroft's oxygen pipe, this let's him know that Holmes has survived. He leaves the room and Holmes reveals himself hiding in Watsons room.
Ø Most commonly used to weld thin sections of stainless steel Tungsten inert Gas welding OPERATION Ø High frequency generator generates an electric spark Ø Electrode does not melt, the work does Ø Filler metal fed into the molten pool where it melts Ø Weld must be shielded with oxygen free gases Tungsten inert Gas welding THANK YOU FOR LISTENING! J
teachersdomain.org/sci/life/index.html · In the depths of the Mediterranean Sea, a · http://www.teachersdomain.org/resources/tdc02/sci/life/cell/krebs/index.html team of researchers has discovered the first animals that live their entire lives without · http://upload.wikimedia.org/wikipedia/commons/1/10/MitoChondria.jpg oxygen. Instead, the animals thrive in an · http://www.life.uiuc.edu/crofts/bioph354/nad.html environment surrounded by 'poisonous' · http://www.efn.uncor.edu/dep/biologia/intrbiol/cdel2.htm sulphides. These are tiny (less than 1 mm in · http://kentsimmons.uwinnipeg.ca/cm1504/respiration.htm length). · The animals belong to the phylum Loricifera .
First of all, I'd like to ask how many of you visit Facebook on daily basis?... I thought so! Nowadays it would be hard to find a person who hasn't heard of Facebook. One in every 13 people on Earth is on Facebook right now. It is equal to oxygen for millions and millions of people. It currently has 800 million members and the numbers are going up as we speak. It would be fascinating to know, what caused such kind of phenomenon. At present I believe I could say that life has gathered into the Facebook. We can track in real time what people are doing, who they are communicating, what their marital status is and what mood they're in. Even businesses are promoting and seeking for new potential
and float down to their landing. They use their long tail to help steer when gliding through the air.Sugar Glider's nest in a hollow of a tree, or in a nest made of twigs and leaves. VII slaid The platypus is found in eastern Australia. They live aside freshwater rivers or lakes, and create burrows for shelter and protection. When swimming the platypus has its eyes shut. They swim underwater for 2 minutes, before returning to the surface for oxygen. Platypuses can consume their own body weight in food in a 24 hour period! The male platypus has venom strong enough to can kill a small dog, or cause excruciating pain among humans. VIII slaid Thank you for listening!
(ii) Desulfovibrio, uses sulphur (S)/makes hydrogen sulphide (H2S); green sulphur bacteria, use H2S/make S; colourless sulphur bacteria use H2S; max 2 (f) colourless sulphur bacteria; 1 (g) C. perfringens similar to C. difficile/AW; (bacteria) anaerobic; (tissue damage/poor blood supply) decreases oxygen available; conditions suitable for Clostridium to multiply; AVP; max 2 [16] 50. (a) (i) U A C C G G A U U C A C;; 1 error = 1, 2 errors = 0 allow 1 mark for giving T throughout instead of U (i.e
fireball that expands and cools for months. We're lucky that they rarely strike close to home. The last supernova in our own galaxy exploded in 1604, rivaling Jupiter's brightness in the night sky and deeply impressing Johannes Kepler, the pioneering astronomer. A nearby supernova--within a few light-years--would bathe the Earth in lethal radiation. Yet the legacy of supernovas is as close as our own bodies. The carbon in our cells, the oxygen in the air, the silicon in rocks and computer chips, the iron in our blood and our machines--just about every atom heavier than hydrogen and helium--was forged inside ancient stars and strewn across the universe when they exploded billions of years ago. Eager to understand our origins and, in some cases, simply wild about things that go bang, astronomers have been struggling for decades to understand why stars that shine peacefully for millions of years suddenly blow up.
turbo gets moving. SUPERCHARGER Adding a supercharger is a great way to achieve forced air induction.A supercharger is any device that pressurizes the air intake to above atmospheric pressure. Superchargers are powered mechanically by belt- or chain-drive from the engine's crankshaft. Getting more fuel into the charge would make for a more powerful explosion. But you can't simply pump more fuel into the engine because an exact amount of oxygen is required to burn a given amount of fuel. This chemically correct mixture -- 14 parts air to one part fuel -- is essential for an engine to operate efficiently. The bottom line: To put in more fuel, you have to put in more air. That's the job of the supercharger. Superchargers increase intake by compressing air above atmospheric pressure, without creating a vacuum. This forces more air into the engine, providing a "boost." With the additional air in
Shortly after the entrance to the tunnel he completely lost control over the car. The car skidded, lurched from side to side and finally crashed at high speed into the 13th concrete post. Nobody in the car wore a seatbelt. The driver and Dodi died immediately. The second bodyguard was in critical position and unconscious. Diana made rowing movements with her arms, when injured people do this, it means that they are not receiving enough oxygen. On the second carriageway was driving a doctor Frederic Maillez. When he saw the accident, he stopped his car, took his emergency bag and ran to help the victims. He gave bodyguard medical attention and went to Diana. He laid oxygen mask to Diana's mouth. The ambulance was meanwhile underway. It took almost an hour until the victims could be taken out of the wreck. The car had to be first cut open using metal shears. Diana was taken to hospital and she had massive inner bleeding
alone is vanishing at a rate of 20,000 square miles a year. If nothing is done to curb this trend, the entire Amazon could well be gone within fifty years. Massive deforestation brings with it many ugly consequences-air and water pollution, soil erosion, malaria epidemics, the release of carbon dioxide into the atmosphere, the eviction and decimation of indigenous Indian tribes, and the loss of biodiversity through extinction of plants and animals. Fewer rainforests mean less rain, less oxygen for us to breathe, and an increased threat from global warming. But who is really to blame? Consider what we industrialized Americans have done to our own homeland. We converted 90 percent of North America's virgin forests into firewood, shingles, furniture, railroad ties, and paper. Other industrialized countries have done no better. Malaysia, Indonesia, Brazil, and other tropical countries with rainforests are often branded as
near the kidney. It produces and secretes noradrenaline and adrenaline for the activation of the sympathetic nervous system. It is implicated in stress response. AFFERENT – Carrying information towards a particular group of neurones (compare efferent*). AGONIST – A neurotransmitter or a drug which binds to a receptor and triggers a cascade of intracellular signalling leading to changes in the membrane potential. AMINO ACID – A chemical made of carbon, oxygen, hydrogen and nitrogen, which is a building unit of all proteins* and other biologically important substances. AMINO ACID NEUROTRANSMITTERS – A group of fast acting neurotransmitters* which includes glutamate (excitatory) and GABA (gamma-amino butyric acid, inhibitory). AMNESIA – Loss of memory. AMYGDALA – A structure in the forebrain which is a component of the limbic* system. It is implicated in control of emotions.
Short and long term effects of alcohol Good morning. My name is NIMI. I'm going to talk about short and long term effects of alcohol consumption. Firstly I'll tell you about short term effects and then move on to long term effects. My presentation will take about 5 minutes. If you have any questions, you are welcome to ask them afterwards. Firstly I would focus on the short term effects of alcohol consumption. The amount and circumstances of alcohol consumption play a large part in determining the extent of intoxication; for instance, consuming alcohol after a heavy meal causes alcohol to absorb more slowly. Hydration also plays a role as for determining the extent of hangovers. Initially, alcohol produces feelings of relaxation and cheerfulness, but as a result of further consumption blurred vision and coordination problems generally occure. As far as cell membranes are concerned they are highly permeable to alcohol, once alcohol is ...
· Poverty and overpopulation vaesus ja ülerahvastatus. · Colonialism kolonialism. Why save it? · The rainforest is home to over · Vihmamets on koduks rohkem fifty percent of all plants and kui 50 % maa loomadele ja animals on earth. It is the taimedele. See on maa elav earth's living lung--it breathes kops see hingab sisse karbon in carbon dioxide and breathes dioksiide ja hingab välja out oxygen. Some rainforests hapniku. Mõned vihmametsad are an unexplored frontier, with on uurimata piiralaga, kus on all kinds of new animals and igasuguseid uusi loomi ja isegi even new tribes of people. The uusi inimeste hõime. NWF pani National Wildlife Federation in aastal 1993 kirja kümme põhjust miks me peaksime 1993 listed ten reasons why vihmametsad päästma.
PROJECT Things You Can Do To Protect the Environment changing. We need to help it change for the better and we're asking for your help to do that! There are a lot of things that affect our planet in a bad way but the good news is that everyone can help to reduce them and do their bit for the environment. Here’s a list of LOVE AND CARE THE ENVIRONMENT important topics ...
· 200 m Sprint (50-100 m Sprint swimming) Men's WR:19.32 s - Michael Johnson (37.3 km/h) Women's WR: 21.34s - Flo Griffith-Joyner (34 km/h · Energy system: The lactate system · Fuel: Carbohydrate only Anaerobic Glycolysis · Breakdown of glucose or glycogen via special glycolytic enzymes. · First glucose or glycogen must be converted to Glucose 6-phosphate. Glucose to glucose 6-phosphate costs 1 ATP · Glycolysis produces pyruvic acid, without oxygen pyruvic acid is converted to lactic acid. · Net gain 3 moles of ATP (glucose = 2 ATP) Anaerobic Glycolysis · Reserve fuel activated when a person accelerates during race, during the last 200 m of a mile run, or performs a 400 m run or 100 m swim. Lactic Acid/Lactate Formation · During very high intensity exercise high rate of glycolysis H+ released faster than they can be removed by NADH (ETC) increased lactic acid production.
mullidega pinnale vahukihti, sealt eemaldatekase vahuga · Kasutatakse lisaks vee puhastamisele ka maakide rikastamisel Naftareostus EI TULE Detriit surnud taimne aine, lagunenud orgaanilised jäänused, vees peamiselt planktiliste organismide ja veetaimestiku jäänused, mis on toiduks bakteritele, kes detriidi lõplikult lagundavad vees hõljuvad v. veekogu põhja sadestunud surnud taimede ja loomade jäänused, pude. BHT biochemical oxygen demand test, biokeemiline hapnikutarbimine. Heitveed mis on suure BHT-ga võivad põhjustada lahustunud hapniku sisalduse vähenemise vetes, millesse neid juhitakse, seejärel võib hapnikusisaldus uuesti tõusta kui toimub reageerimine atmosfääris; seda protsessi saab iseloomustada hapnikuvajakuga. Estuaarid poolsuletud rannikuveekogud, millel on vaba ühendus ookeaniga, vesi on märgatavalt lahjendatud. Vee soolsus tavaliselt 0.. 35 promilli. · Liigid:
to control water flow; and a reservoir where water can be stored. Hydroelectric power provides almost onefifth of the world's electricity. China, Canada, Brazil, the United States, and Russia were the five largest producers of hydropower in 2004. The first hydroelectric power plant was built at Niagara Falls in 1879. Negative aspects of hydropower Damming rivers may destroy or disrupt wildlife and other natural resources. Hydropower plants can cause low dissolved oxygen levels in the water, which is harmful to river habitats. Hydroelectric power plants don't work for a very long time. Silt, or dirt from a riverbed, builds up behind the dam and slows the flow of water. Geothermal energy Geothermal energy is the heat from the Earth. It's clean and sustainable. It can be extracted without burning a fossil fuel such as coal, gas, or oil. Geothermal fields produce only about onesixth of the carbon dioxide
Miina Härma Gymnasium Acid Rain Report Compiler: Teisi Timma 8a Teacher: Esther Linask Tartu 2009 Acid Rain Acid rain is rain consisting of water droplets that are unusually acidic because of atmospheric pollution - most notably the excessive amounts of sulfur and nitrogen released by cars and industrial processes. Acid rain is also called acid deposition because this term includes other forms of acidic precipitation such as snow. Acidic deposition occurs in two ways: wet and dry. Wet deposition is any form of precipitation that removes acids from the atmosphere and deposits them on the Earth's surface. Dry deposition polluting particles and gases stick to the ground via dust and smoke in the absence of precipitation. This form of deposition is dangerous however because precipitation can eventually wash pollutants into strea...
extracted into solution. This can occur if the water is not hot enough or if the water passes through the ground coffee too quickly. An insipid, thin brew lacking in body and flavour will result. Over Extraction occurs when the water is in contact with the ground coffee for too long and too much of the coffee soluble are extracted than is desirable. A harsh tasting bitter brew will result. Freshness Coffee is best enjoyed as soon as it has been brewed. Oxygen in the atmosphere causes the taste to rapidly deteriorate and the beverage loses its aromatic oils and may soon become sour, flat and lifeless. Freshly brewed coffee should be consumed within 30 minutes if left on a hotplate and should never be reheated. The quality of the brewed coffee beverage will depend on several factors, all of which are important to produce the perfect cup of coffee: 1) Grind size of the coffee 2) Quantity of coffee used 3) Water quality 4) Water temperature
the day. It gives children early exposure to team sports, and promotes good physical fitness. Children who participate in physical education get a workout, and they also learn the importance of exercise as a lifelong habit. Physical education is clearly an important course in schools, with many benefits for children. In addition to helping kids learn healthy habits and stay off drugs, physical education can also increase learning by getting the blood flowing and increasing oxygen levels, which promote concentration. Sports and PE help children build self esteem and help them learn important lessons in teamwork. Physical education is extremely important and should be protected in schools, despite budget cuts. Children who take PE classes at school may also be able to use those classes as a springboard to become interested in joining a team sport. Numerous studies have shown that children who participate in a team sport are less likely to become involved in drugs
Different types of forests and their forms of usage TARTU 2010 Forest A forest (also called a wood, woodland, wold, weald, holt, frith) is an area with a high density of trees. Forests cover approximately 30% of land and 9.4% of all the planet earth. They are also responsible for regulating our planet's climate and act as large purifiers of airs, by absorbing carbon dioxide, and giving out oxygen. Different types of forests Forests are divided into following main types: o Tropical forest o Subtropical forest o Plantations o Boreal forest o Temperate forest o Seasonal or monsoon forest Tropical and Subtropical Forests Tropical and subtropical forests, also known as rainforests or tropical rainforests, are lavish and ample forests with broad leave tree. They are mostly found at lowlands near the equator - Asia, Africa, South & Central America
.................the car. 7. She likes a book .................. Mark Twain. 8. I go to school from Monday .................. Friday. 9. He was accused .................. the crime. 10. to carry somebody .................. board 11.He spent his childhood .................. the company of his brothers. 12. A man was fleeing .................. the ice. 13. He became obsessed .................. theories about human life . 14. All green plants take .................. carbon dioxide and give off oxygen. 15. ..................the same time 16. The puppy is .................. the trash can. 17. .................. midnight 18. We are going .................. holiday next week. 19. There is a bridge .................. the river. 20. Would you like to go .................. the cinema tonight? 21. The woman's bag is .................. the table. 22. The woman is sitting .................. a table. 23. Some kinds .................. plants 24.To be caused .................. something 25.To last ......
and if one of the species goesis going to extinct, then the whole natural ecosystem will be disheveled. It will affect humans as well because we are a part of wildlife. Animals and plants benefit us just by being there. These benefits, whichthat are called "ecosystem services", which most of us take for granted. Some of these services are obvious; fFor instance, there are the plants and animals that we eat. Meanwhile, photosynthetic plankton in the sea and green plants, provide us with the oxygen we breathe. If those things disappear humans will lose physical goods in their life. From a lot of different animal species that are in a danger of extinction we, humans, get the medicine that cures will cure our sicknesses. The use of animal parts in traditional medicine can also contribute to a species' decline, despite there being no real evidence of the efficacy of these treatments. The rarity of a creature does not protect it from being killed in the name of
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