(a)[4]
Using these molecules, identify: - a phosphorylated nucleotide - a 3-carbon compound - a coenzyme - an enzyme
(b)
A sugar-rich sample of tree sap was discovered to be contaminated by yeast. The ethanol concentration in this sample was then measured at regular time intervals. The outcomes are displayed in Fig. 1.1.
(b(i))[2]
Calculate the percentage increase in ethanol concentration from 15 to 45 hours. Show your working.
(b(ii))[1]
Suggest why the ethanol concentration fell after 45 hours.