Answer:
a) Total of ATP produced in glycolysis is equal to 2
ATP produced:
i) 1,3‑bisphosphoglycerate → 3‑phosphoglycerate (2 ATP are produced)
ii) phosphoenolpyruvate→pyruvate (2 ATP are produced)
b) 26 pyruvate molecules.
Explanation:
a) Glycolysis consists of two steps in which ATP is consumed and two steps in which ATP is released.
ATP produced = 4
ATP consumed = 2
The total of ATP produced in glycolysis is equal to 2 (4-2)
ATP produced:
i) 1,3‑bisphosphoglycerate → 3‑phosphoglycerate (2 ATP are produced)
ii) phosphoenolpyruvate → pyruvate (2 ATP are produced)
b) In the sixth step of glycolysis, inorganic phosphate molecules are consumed:
glyceraldehyde-3‑phosphate → 1,3‑bisphosphoglycerate
2 pi are added in glycolysis. As each glucose molecule undergoes glycolysis, the pi required by the 13 glocosa molecules is 26 (13 * 2). Glycolysis of each glucose produces 3 pyruvates, so 13 glucose molecules will produce 26 pyruvate molecules.