Night blindness is caused by the deficiency o | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(D) Night blindness,also known as nyctalopia,is a condition where an individual has difficulty seeing in low light or darkness.In the human eye,the ro

Vedclass · Accepted Answer

Deficiency of rhodopsin in rods

Vedclass · Answer

(D) Night blindness,also known as nyctalopia,is a condition where an individual has difficulty seeing in low light or darkness.In the human eye,the rod cells are responsible for vision in dim light (scotopic vision).These rod cells contain a light-sensitive pigment called rhodopsin (visual purple).Rhodopsin is a derivative of Vitamin $A$.$A$ deficiency of Vitamin $A$ leads to a reduced synthesis of rhodopsin in the rod cells,which impairs the ability to see in dim light,resulting in night blindness.

Column $I$	Column $II$
$(a)$ Rods and Cones	$(i)$ Absence of photoreceptor cells
$(b)$ Blind Spot	$(ii)$ Cones are densely packed
$(c)$ Fovea	$(iii)$ Photoreceptor cells
$(d)$ Iris	$(iv)$ Visible coloured portion of the eye

Night blindness is caused by the deficiency of which of the following?

Similar Questions

Which of the following food items is essential for the synthesis of rhodopsin?

The optic nerve is the:

Match the following columns and select the correct option.

Column $I$ Column $II$

$(a)$ Rods and Cones $(i)$ Absence of photoreceptor cells

$(b)$ Blind Spot $(ii)$ Cones are densely packed

$(c)$ Fovea $(iii)$ Photoreceptor cells

$(d)$ Iris $(iv)$ Visible coloured portion of the eye

Which one of the following statements is not correct?

Harderian glands are absent in

Vedclass Test Series

Exam Paper Generator

Online Exam Module