Question

The whole process of aerobic respiration takes place in the

• A. Mitochondria
• B. Mitochondria and paroxysms
• C. Mitochondria and cytoplasm
• D. Cytosol

Answer 1

The correct option is A

Mitochondria

The correct answer is option A.

Explanation of the correct answer:

Aerobic respiration:

1. Aerobic respiration is a process that involves the use of oxygen in the catabolism of nutrients, mainly carbohydrates, into carbon dioxide, water, and the electrons produced undergo an electron transport chain. Here, oxygen acts as an electron acceptor.
2. The ATP molecules produced as a result of this process are used to produce energy.
3. Mitochondria are the site of aerobic respiration.
4. It is a membrane-bound organelle found in all cells except red blood cells.
5. The stages of aerobic respiration that occur are glycolysis, the Kreb cycle, and the electron transport chain.
6. It is the matrix of the mitochondria is where the ETC and Kreb cycles occur.

Explanation of the incorrect answers:

Option B:

1. Aerobic respiration takes place in mitochondria.
2. Paroxysms is a medical condition that has nothing to do with aerobic respiration

Option C:

1. The mitochondrion is the site of aerobic respiration.
2. The cytosol is where the anaerobic process called glycolysis begins, which is the first step of cellular respiration.

Option D:

1. It is the fluid in which the organelles are suspended, many biochemical activities of the cell occur at this site.
2. The cytosol is where the anaerobic process called glycolysis begins, which is the first step of cellular respiration.
3. It is the sole source of energy in prokaryotes and anaerobic bacteria.

Final answer:

The whole process of aerobic respiration takes place in the mitochondria and cytoplasm.