NEETChemistryBiomolecules
Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): Vitamin B ₁₂ is classified as a fat-soluble vitamin because it is stored in the liver of the human body. Reason (R): Deficiency of Vitamin B ₁₂ causes pernicious anaemia, a condition where red blood cells are deficient in haemoglobin. In the light of the above statements, choose the most appropriat
Options
- ABoth (A) and (R) are true and (R) is the correct explanation of (A)
- BBoth (A) and (R) are true but (R) is not the correct explanation of (A)
- C(A) is true but (R) is false
- D(A) is false but (R) is true
Correct answer
D. (A) is false but (R) is true
Step-by-step solution
Assertion (A) is false. Vitamin B ₁₂ is a water-soluble vitamin, not a fat-soluble vitamin. It is grouped with the B-complex vitamins. However, it is a unique exception among water-soluble vitamins because it can be stored in the human body (liver). Reason (R) is true. The deficiency of Vitamin B ₁₂ leads to pernicious anaemia, which is characterized by red blood cells being deficient in haemoglobin. Therefore, (A) is false but (R) is true. Answer: (A) is false but (R) is true