HomeTestsSearchRankProfile
mediumMCQBiologyBiology
1 mark

Which one of the following statements is not correct?

  1. A
    Retinal is the light-absorbing portion of visual photopigments.
  2. B
    In the retina, rods have rhodopsin while cones have three different photopigments.
  3. C
    Retinal is a derivative of Vitamin C.
  4. D
    Rhodopsin is the purplish-red protein present in rods only.

Solution & Step-by-step Explanation

Statement (C) is incorrect. Retinal (an aldehyde of vitamin A) is a derivative of Vitamin A, not Vitamin C. Vitamin A deficiency leads to night blindness.

Practice this question

Try it yourself before checking the explanation above.

Which one of the following statements is not correct?
A
Retinal is the light-absorbing portion of visual photopigments.
B
In the retina, rods have rhodopsin while cones have three different photopigments.
C
Retinal is a derivative of Vitamin C.
D
Rhodopsin is the purplish-red protein present in rods only.

Share This Question

Human PhysiologySensory Organs

Related Questions

mediumMCQ

The main organelle involved in modification and routing of newly synthesized proteins to their destinations is :

mediumMCQ

There are two opposing views about origin of Modern man. According to one view Homo erectus in Asia were the ancestors of modern man. A study of variations of DNA however suggested African origin of Modern man. What kind of observation on DNA variation could suggest this ?

easyMCQ

The world's highly prized wool yielding 'Pashmina' breed is :

mediumMCQ

Grey crescent is the area :

mediumMCQ

Photosynthesis in C4 plants is relatively less limited by atmospheric CO2 levels because :

mediumMCQ

There exists a close association between the alga and the fungus within a lichen. The fungus :

Ready for a Full Test?

Practice with timed mock tests and track your performance across Biology.

Browse TestsLeaderboard

Discussion