Question

Choose the correct option-

Anaerobic breakdown of glucose in our muscles produces-

• A. Lactic acid
• B. Pyruvate
• C. Oxalic acid
• D. Ethyl alcohol

Answer 1

The correct option is A

Lactic acid

The correct option is A.

Explanation of correct option:

1. Anaerobic glycolysis refers to the breakdown of glucose when oxygen supply is limited. Only 2 ATP molecules are released.
2. This reaction is catalyzed by the lactate dehydrogenase enzyme.
3. During strenuous exercise, muscles face a lack of oxygen and require energy to carry out the work.
4. Glucose is broken down in the lack of oxygen to produce lactic acid and carbon dioxide.
5. Accumulation of lactic acid in the muscles results in muscle cramps.

Explanation of incorrect option:

Option B:

Pyruvate is formed during the breakdown of glucose in the presence of oxygen to release energy through aerobic respiration.

Option C:

Oxalic acid is found in various vegetables, nuts, and fruits. Excess oxalic acid results in the formation of kidney stones.

Option D:

Ethyl alcohol is produced by yeast during the fermentation process.

Final answer: Anaerobic breakdown of glucose in our muscles produces lactic acid.