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  9. Q234

RRB Group D (Level-1 posts) 2022 · Question 234 of 598

Which of the following statements is FALSE?

  1. APyruvic acid is produced in the first stage of respiration.
  2. BOxygen is not necessary for the fermentation process.
  3. CIn the mitochondria, acetic acid is broken down utilizing oxygen.Correct
  4. DIn the first stage of respiration, breakdown of glucose takes place.

Answer: C. In the mitochondria, acetic acid is broken down utilizing oxygen.

Explanation

The breakdown of acetic acid occurs without oxygen; it’s glucose that breaks down in the first stage, and pyruvic acid forms in the absence of oxygen in fermentation.

Source: RRB Group D 2022 Prev. Yr. Paper (17 Aug 2022) (Shift 3) - Prepp · reliable-secondary

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