AIPMT MAIN2008Zoology-Human Eye and Colourful World
AIPMT MAIN 2008 Zoology Structure of Retina MCQ Question
Type: MCQ-conceptual-Medium
Which one of the following is the correct difference between Rod Cells and Cone Cells of our retina?
A
Distribution: More concentrated in centre of retina | Evenly distributed all over retina
B
Visual acuity: High | Low
C
Visual pigment contained: Iodopsin | Rhodopsin
D
Overall function: Vision in poor light | Colour vision and detailed vision in bright light
Correct Answer
Option D
Detailed Explanation
Rod cells are more concentrated towards the periphery. Visual acuity is highest in fovea centralis which contains only cones. Visual pigment in rods cells is rhodopsin, whereas in the cone cells it is iodopsin.
Found an issue with this question?