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During vigorous exercise :



i. lactic acid accumulates in muscle cells to meet its energy needs immediately.

ii. lactic acid is formed by anaerobic respiration hence oxygen consumption by muscles is reduced.

iii. This reduction in oxygen consumption is called oxygen debt of muscle.

Which of the following statement is Correct ?

  • a)
    only statement ii) and iii) are correct.

  • b)
    only statement i) and ii) are correct.

  • c)
    only statement i) is correct. 

  • d)
    all statements are correct.

Correct answer is option 'B'. Can you explain this answer?
Verified Answer
During vigorous exercise :i. lactic acid accumulates in muscle cells t...
During vigorous exercise, lactic acid accumulates in muscles cells to meet the energy requirement of muscle cell. Lactic acid is formed due to insufficient availability of oxygen.
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Most Upvoted Answer
During vigorous exercise :i. lactic acid accumulates in muscle cells t...
I. part is true because during intense exercise there may not be enough O2 available to complete the process, so a substance called lactate is made from glucose so that our body can use lactate to covert in energy without using oxygen, ii. part is not true because during vigorous exercise oxygen consumption is increased in muscles for more energy, iii. part is also false because reduction in oxygen consumption is not called oxygen debt of muscle.
So, correct option is B.
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Community Answer
During vigorous exercise :i. lactic acid accumulates in muscle cells t...
Lactic Acid Accumulation During Vigorous Exercise

Explanation:
During vigorous exercise, the muscles require energy to work. The energy is obtained through the process of cellular respiration, which can take place aerobically or anaerobically. In the case of vigorous exercise, the demand for energy exceeds the supply of oxygen, which results in anaerobic respiration.

Lactic Acid Accumulation:
During anaerobic respiration, glucose is broken down into pyruvate, which is further converted into lactic acid. The accumulation of lactic acid in muscle cells is a result of the inability of the body to clear it out as fast as it is being produced. This accumulation of lactic acid is responsible for the burning sensation that is felt in the muscles during intense exercise.

Reduced Oxygen Consumption:
The accumulation of lactic acid is a result of reduced oxygen consumption by the muscles. This reduction in oxygen consumption is called the oxygen debt of the muscle. The oxygen debt is the amount of oxygen that the body needs to consume in order to clear out the lactic acid that has accumulated during the anaerobic respiration process.

Conclusion:
In conclusion, during vigorous exercise, lactic acid accumulates in muscle cells to meet its energy needs immediately. This lactic acid is formed by anaerobic respiration, which reduces oxygen consumption by muscles. This reduction in oxygen consumption is called the oxygen debt of the muscle. Therefore, option B, i.e., only statement i) is correct.
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During vigorous exercise :i. lactic acid accumulates in muscle cells to meet its energy needs immediately.ii. lactic acid is formed by anaerobic respiration hence oxygen consumption by muscles is reduced.iii. This reduction in oxygen consumption is called oxygen debt of muscle.Which of the following statement is Correct ?a)only statement ii) and iii) are correct.b)only statement i) and ii) are correct.c)only statement i) is correct.d)all statements are correct.Correct answer is option 'B'. Can you explain this answer?
Question Description
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