(a(i))[2]
Explain what is meant by each of the following terms: decarboxylation; dehydrogenation.
(a(ii))[1]
Using the cycle letters, state the positions at which decarboxylation occurs.
(b(i))[1]
State the number of reduced NAD molecules that are produced in the Krebs cycle from one acetyl group entering the cycle from acetyl coenzyme A.
(b(ii))[5]
State where the reduced NAD molecules are re-oxidised and describe the fate of the hydrogen atoms.
(c)[4]
Describe the role of reduced NAD in respiring yeast cells when oxygen is absent.
(d)[3]
Describe how lactate production in muscle tissue differs from anaerobic respiration in yeast.