(a(i))[2]
Complete Table 2.1 by stating the exact locations, within a muscle cell, of glycolysis, the link reaction, the Krebs cycle and oxidative phosphorylation.
(a(ii))[2]
In a muscle cell, glucose molecules are phosphorylated at the beginning of glycolysis. Suggest why the phosphorylated glucose molecules cannot diffuse out of the cell.
(b)[5]
Sometimes an athlete must respire in anaerobic conditions in order to make ATP. Explain why glucose respiration in anaerobic conditions generates less ATP than in aerobic conditions.
(c)[3]
For a short period after exercise, a person keeps breathing more deeply than at rest to take in more oxygen than usual. Explain the use of this extra oxygen.