Question

What stage of aerobic respiration requires ATP?

Answer 1

Aerobic respiration:

1. A biological chemical process in which oxygen is used to make energy from carbohydrates (sugars).
2. It is also called aerobic metabolism, cell respiration, and oxidative metabolism.

Glycolysis:

1. Glycolysis is the breakdown of glucose into two molecules of pyruvate.
2. Glycolysis is a ten-step process first five steps are energy-consuming steps and the next five steps are energy-producing steps.
3. ATP is required in the first half of glycolysis, when glucose is converted to glucose-6-phosphate by the enzyme hexokinase and when fructose-6-phosphate is converted to fructose 1, 6-bisphosphate by the enzyme phosphofructokinase.
4. Two ATP molecules are required for the break down of glucose and four ATP molecules are synthesized.
5. The ATP directly synthesized through glycolysis is called substrate-level ATP.
6. The whole process of glycolysis takes place in the cytoplasm of a cell.