Vitamins and Coenzymes · Zoology

Which vitamin acts as a coenzyme in the conversion of homocysteine to methionine?

  1. Vitamin B6 (pyridoxine)
  2. Vitamin B9
  3. Vitamin B12
  4. Vitamin C
Show answer and explanation

Correct answer: Vitamin B12

Vitamin B12 is required for methyl transfer from folate to homocysteine. This reaction forms methionine and prevents homocysteine accumulation.

Difficulty: Medium Question 16 of 20

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