Which one of the following is the correct matching of a vitamin, its nature and its deficiency disease? 
(a) Vitamin-A    -    Fat soluble     -    Night blindness
(b) Vitamin-K    -    Fat soluble     -    Beri-beri
(c) Vitamin-A    -    Fat soluble     -    Beri-beri
(d) Vitamin-K    -    Water soluble -    Pellagra

Audio Explanation:

(a) Fat soluble vitamins are A, D, E and K. Deficiency of vitamin-A leads to night blindness or nyctalopia because vitamin-A is essential for synthesis of visual pigments (rhodopsin).

Difficulty Level:

  • 80%
  • 6%
  • 7%
  • 9%