Which physiologic process requires vitamin B₁₂?

Question

Quizplus · Accepted Answer

Vitamin B12 is required for the maintenance of myelin and normal nerve transmission. Myelin is a fatty substance that surrounds and insulates nerve cells, and vitamin B12 is necessary for the synthesis of myelin. Deficiency of vitamin B12 can lead to neurological symptoms such as numbness, tingling, and weakness. Vitamin B12 is not involved in the division of red blood cells (which requires iron and folate), synthesis of proteins (which requires amino acids), or activation of niacin (which requires niacin itself).

Which Physiologic Process Requires Vitamin B₁₂