(a)[2]
Fig. 8.1 shows an electron micrograph of a mitochondrion in section. Name X and Y.
(b(i))[1]
With reference to Fig. 8.2, explain why ATP is required at the beginning of glycolysis.
(b(ii))[1]
State what NAD does in glycolysis.
(b(iii))[1]
State the number of ATP molecules produced from one glucose molecule during glycolysis.
(b(iv))[2]
Name the two reaction types involved when pyruvate is converted to acetyl CoA in the link reaction.
(b(v))[1]
Name the location in the mitochondrion where the link reaction occurs.
(b(vi))[2]
Describe the fate of the hydrogen released during the link reaction.
(c)[5]
Explain why $\text{ATP}$ is considered the universal energy currency in organisms.