General Knowledge - Biology - Discussion

Discussion :: Biology - Section 1 (Q.No.53)

53. 

Night blindness is cause by lack of which vitamin?

[A]. Vitamin A
[B]. Vitamin B
[C]. Vitamin C
[D]. Vitamin D

Answer: Option A

Explanation:

No answer description available for this question.

Shreyashi Dey said: (Sep 3, 2011)  
Vitamin A is the precursor of the rhodopsin which is the main vital for converting photon into electrical signal and is main constituent of rod cells of retina whis is responsible for low intensity light detection or night-vision. So deficiency of Vit A causes night-blindness.

Maxman said: (Jul 22, 2016)  
What about vitamin D?

Yohannes said: (Aug 5, 2016)  
Another name of vitamin A is retinal.

Collins said: (May 18, 2018)  
I don't seem to get it clear.

Is it that lack of vitamin A cause night blindness or vitaminA itself cause night blindness?

I want to be clear on that, please.

Mathesh said: (Aug 3, 2018)  
The night blindness is caused due to the deficiency of Vitamin A. The deficiency of vitamin A causes a nutritional deficiency disease which is called as "NYCTOLOPIA", which is responsible for the night blindess.

Gaurav said: (Sep 12, 2018)  
Night blindness is caused by deficiency of vitamin A and also called this disease nyctalopia

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