Which vitamin is involved in the conversion of homocysteine to methionine in the methionine cycle?

A Vitamin B12 ✓

B Vitamin B6

C Folic acid

D Vitamin C

Explanation

Vitamin B12, along with folate, is necessary for the conversion of homocysteine to methionine, which helps to prevent the accumulation of homocysteine in the blood.

Mnemonic

_B12 = Bridge (connects homocysteine to methionine)

Source

Guyton and Hall Textbook of Medical Physiology

Vitamins Biochemistry Methionine cycle Medium MEDICAL Confidence: high

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Which vitamin is involved in the conversion of homocysteine to methionine in the methionine cycle?

Explanation

Mnemonic

Source

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