Multiple choice

Consider the following statements:

  1. Beta-oxidation takes place only in glyoxysomes and not in cytosol.
  2. When fatty acids undergo beta oxidation to form Acetyl CoA, only NADH is produced and not FADH2. Which of the statements given above is/are correct?

  1. 1 only

  2. 2 only

  3. Both 1 and 2

  4. Neither 1 nor 2
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Statement 1 is incorrect because beta-oxidation occurs in mitochondria (not glyoxysomes) in animals, and in glyoxysomes in plants, not 'only' in glyoxysomes. Statement 2 is also incorrect because beta-oxidation produces BOTH NADH and FADH2, not just NADH. Each cycle produces one NADH, one FADH2, and one acetyl-CoA. Therefore BOTH statements are wrong, making option D correct.

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