Question

What are the products obtained by anaerobic respiration in plants?

• A. Lactic Acid, Energy
• B. Carbon Dioxide, Water, Energy
• C. Ethanol, Carbon Dioxide, Energy
• D. Pyruvate

Answer 1

The correct option is C

Ethanol, Carbon Dioxide, Energy

The correct answer is option C.

Explanation of the correct answer:

1. Anaerobic respiration occurs as the partial breakdown or oxidation of glucose due to the absence of oxygen.
2. This incomplete breakdown leads to the formation of Ethanol, Carbon Dioxide, and Energy.
3. This occurs in anaerobic bacteria and yeast.
4. The equation for anaerobic respiration is: C₆H₁₂O₆ ⇢ 2C₂H₅OH+2CO₂+2ATP

Explanation of the incorrect options:

Option A:

Lactic acid and energy are formed in the animal cells like myocytes when they are overworked under oxygen-deficient conditions. This leads to muscular cramping.

Option B:

Aerobic or complete oxidation of glucose forms carbon Dioxide, water, and energy.

Option D:

Pyruvate is the first stable product formed upon glycolysis. In yeast cells, anaerobic conditions convert pyruvate to carbon dioxide and ethanol.

Hence, the final answer is Ethanol, Carbon Dioxide, and Energy.