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CBSE Class 12 · 2009 · Delhi · BiomoleculesShort Answer

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Name two water-soluble vitamins, their sources, and the diseases caused by their deficiency in diet.

Answer: Vitamin B₁ (yeast, cereals, milk) — beri-beri; Vitamin C (citrus, amla) — scurvy.

Solution

\textbf{Vitamin B (thiamine)} — sources: yeast, whole cereals, milk; deficiency → beri-beri (loss of appetite, nerve inflammation).
\textbf{Vitamin C (ascorbic acid)} — sources: citrus fruits, amla, green vegetables; deficiency → scurvy (bleeding gums).

CBSE Class 12 Board · 2009 · Delhi · Subjective

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