(a)[2]
Name two energy-rich molecules that can be fed into the respiration pathway to make ATP.
(b)[4]
Fig. 1.1 shows a molecule of ATP. Explain the properties of ATP that make it suitable as the universal energy currency of cells.
(c)[1]
Identify the type of phosphorylation reaction used to synthesise ATP in glycolysis and the Krebs cycle.
(d(i))[1]
Pyruvate moves into the matrix of the mitochondrion only when a particular inorganic molecule is present. Name the inorganic molecule that must be present in the cell for pyruvate to enter the matrix of the mitochondrion.
(d(ii))[3]
Explain how the presence of the inorganic molecule named in (d)(i) changes the ATP yield from respiration.