Question

Out of 36 ATP molecules produced per glucose molecule during respiration

• A. 2 are produced outside mitochondria and 34 inside mitochondria
• B. 2 are produced outside glycolysis and 34 during respiratory chain
• C. 2 during glycolysis and 34 during Krebs cycle
• D. All are formed inside mitochondria

Answer 1

The correct option is A

2 are produced outside mitochondria and 34 inside mitochondria

The correct option is A:

Explanation for Correct option:

1. The citric acid cycle produces 36 ATP molecules.
2. So, in aerobic respiration, a total of 38 molecules of ATP are created, with 2 ATP molecules formed outside the mitochondria.
3. Electron transfer from glycolysis' NADH and FADH2 molecules, pyruvate transformation, and the Krebs cycle generates up to 32 additional ATP molecules.
4. As a result, in the process of cellular respiration, a single molecule of glucose can yield up to 36 molecules of ATP.
5. Glycolysis is a set of processes that breaks glucose down into two three-carbon molecules called pyruvate and extracts energy from them.
6. Glycolysis is an old metabolic mechanism that has been found in the vast majority of living species.
7. Cellular respiration is a set of metabolic events and activities that occur within cells of living creatures to transform chemical energy from oxygen molecules or nutrients into adenosine triphosphate (ATP) and then release waste products.
8. When weak high-energy connections, such as those found in molecular oxygen, are replaced by stronger bonds in the products, catabolic reactions break large molecules into smaller ones, releasing energy.
9. Glycolysis in the cytoplasm produces 2 ATP, while another cellular respiration produces 34 ATP.

Final answer: Out of 36 ATP molecules produced per glucose molecule during respiration 2 are produced outside mitochondria and 34 inside mitochondria