Question

Anaerobic respiration in human body occurs inside

• A. Liver
• B. White muscles
• C. Red muscles
• D. Kidney

Answer 1

Answer: (B)

White muscles

Anaerobic respiration occurs during vigorous exercise. When muscle cells use up their oxygen, they have to switch to an anaerobic pathway to obtain energy. Anaerobic respiration in humans occurs in white muscle (type of fast-twitch muscle) cells. The fast-twitch muscle cells switch to a lactic acid fermentation to create energy. Fast twitch fibres contract quickly but fatigue rapidly.

So, the correct answer is option B.