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Q57 (CISF/2017) Science & Technology › Basic Science (Physics, Chemistry, Biology)

Night blindness is caused by the deficiency of

Result
Your answer: —  ·  Correct: B

Explanation

Night blindness, also known as nyctalopia, is primarily caused by a deficiency of Vitamin A (Retinol). Vitamin A is essential for the formation of rhodopsin, a light-sensitive pigment in the retina's rod cells that allows the eye to see in low-light conditions. When Vitamin A levels are low, the production of rhodopsin is impaired, leading to poor vision at night or in dim light.

  • Vitamin C deficiency causes scurvy, leading to bleeding gums and skin spots.
  • Vitamin K deficiency results in impaired blood clotting and excessive bleeding.
  • Vitamin B complex deficiencies cause various conditions such as Beriberi (B1), Pellagra (B3), or Anaemia (B12).
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SIMILAR QUESTIONS

CDS-I · 2008 · Q58 Relevance score: 5.22

Dim-vision in the evening and night results from the deficiency of which one of the following ?

CDS-II · 2007 · Q43 Relevance score: 5.22

Dim-vision in the evening and night results from the deficiency of which one of the following ?

IAS · 2014 · Q97 Relevance score: 3.97

Consider the following pairs : Vitamin Deficiency disease 1. Vitamin C : Scurvy 2. Vitamin D : Rickets 3. Vitamin E : Night blindness Which of the pairs given above is/are correctly matched?

CDS-I · 2022 · Q18 Relevance score: 0.91

The disease rickets develops in children due to the deficiency of :

NDA-II · 2019 · Q12 Relevance score: 0.00

Which one of the following diseases may be caused by the deficiency of vitamin C?