Inglise keel unit 5 answers
yeast concentration ;
pH ;
AVP ; e.g. age of culture 3 max
(ii) add Benedict’s (reagent) and, boil / heat ; A CuSO4 in alkaline solution
different, densities / colours (of precipitates) formed ; A turbidities
use of a colorimeter in correct context ;
A filtering and weighing precipitate
OR
use of Clinistix / Diastix (strips) ;
different colours obtained ;
colour compared to chart ;
accept other valid methods e.g. reference to use of biosensors 2 max
(iii) agree
not all yeast cells successfully entrapped / AW ;
(in product) yeast cells, respiring / metabolising / using sugar as an
energy source ;
(so) lower levels of sugar (in product) ;
not agree
annaabi.ee 
