Question

31. Because of lack of oxygen in muscle
cells, 3 carbon molecule pyruvate is
converted into :
A Lactic acid
B) Ethanoic acid
C) Hydrochloric acid
D) Acetic acid​

Answer 1

Answer:

A) lactic acid

Explanation:

when sometimes during excess of work the body does not get sufficient amount of oxygen in muscle cells 3carbpn pruicate is coverted into lactic acid

Answer 2

Required Answer:-

Because of lack of oxygen in muscle cells, 3 carbon molecule pyruvate is converted into Lactic acid. (Option A)

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Extra Information!!

As soon as glucose enters into the cytoplasm, it breaks down into a 3 - carbon molecule called pyruvate. This pyruvate on reaching the mitochondria performs cellular respiration to produce energy. This happens in the case of aerobic respiration.

There is another form of respiration known as anaerobic respiration.

Anaerobic respiration can be classified into two groups:-

• Anaerobic respiration in yeast (fragmentation)
• Anaerobic respiration in muscle cells (lack of oxygen)

Anaerobic respiration in yeast:-

Here the pyruvate does not break down completely as a result of which ethanol is formed and carbon dioxide is released.

Anaerobic respiration in muscle cells (lack of oxygen):-

When we do a heavy workout the amount of oxygen requirement increases in our muscle cells but the amount that is transported is not sufficient for aerobic respiration to perform and thus the muscle cells start respirating in the lack of oxygen which leads to the formation of lactic acid in our muscles. Here too the pyruvate does not break down completely.

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