Question

Which vitamin deficiency is most directly associated with night blindness in humans?

A Vitamin C Correct Answer Incorrect Answer
B Vitamin D Correct Answer Incorrect Answer
C Vitamin A Correct Answer Incorrect Answer
D Vitamin K Correct Answer Incorrect Answer

Solution

Night blindness, or difficulty seeing in low light conditions, is most directly associated with a deficiency of vitamin A. Vitamin A is essential for the formation of visual pigments in the retina, particularly rhodopsin, which is found in rod cells that function in dim light.  Foods rich in vitamin A are such as liver, eggs, milk, and beta-carotene–rich vegetables like carrots and spinach, help prevent this condition.

Practice Next
More General science Common Questions

Relevant for Exams:

ask-question