Question

Which type of respiration takes place in human muscles; when some extra energy is needed​

Answer 1

Answer:

anaerobic respiration

Human beings normally obtain energy by aerobic respiration. But when we need extra energy, anaerobic respiration can take place in our muscles for a short time. When we do a heavy physical exercise, our muscles need more oxygen. But the supply of oxygen through blood is limited and hence insufficient.

Explanation:

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Answer 2

Answer:

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