primary stress in that sentence (or phrase) and all the other syllables have a secondary stress. There are words in English that may be pronounced in two different ways in weak forms, in strong forms. Function words (auxiliary verbs, prepositions, conjunctions and certain pronouns) have weak forms. Strong forms replace the weak forms at the end of the sentence, being contrasted with another word, there is a co-ordinated use of prepositions, emphasis. Problems in phonemic analysis. Essay. There are two main areas of difficulty. The first can be called the problem of analysis: we may accept the principle of the phoneme as a fundamental unit in language, but we find difficulty in deciding what are the phonemes of English. The result of this is that different writers produce different analyses of the phonemic system of English. It is possible to treat
moodustumist.) Vastupidiselt ortofosfaadi kõrge c tsütosoolis, tärklise süntees kloroplastis on inhibeeritud, trioosfosfaadi eksport tsütosooli, tehakse saahharoos. Sahharoosi tekkel on fruktoos-1,6-bifosfaadist vaja saada fruktoos- 6-fosfaat. Selleks on vaja fosfofruktokinaasi, mille aktiivsus on aga ATP, ADP, AMP konsentratsioonidest sõltuv. in leaves, the rate of sucrose synthesis is tightly co-ordinated with the rates of photosynthetic carbon dioxide fixation and starch synthesis in the chloroplasts. 86. Miks keskpäeval toimub fotosünteesivates rakkudes ümberlülitus sahharoosi sünteesilt tärklise sünteesile Tärklise süntees vajab ATP-d ja selle ahela tähtsaim ensüüm ADP glükoosi pürofosforülaas on allosteeriliselt aktiveeritav PGA, F6P ja trioosfosfaatide poolt.
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