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Rhodopsin is found in
Options
(a) rods only
(b) whole of retina
(c) cones only
(d) ganglion cells
Correct Answer:
rods only
Explanation:
The rod cells of the retina contain the pigment rhodopsin or visual purple. Rhodopsin consists of a protein component, opsin, linked to a nonprotein, chromatophore (retinal) a derivative of vitamin A. Light falling on the rod is absorbed by the tetinal, which changes its form and separates from the opsin component. This initiates the transmission of a nerve impulse to the brain. The great sensitivity of rhodopsin allows vision in dim light (Night vision).
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Topics: Neural Control and Chemical Coordination
(195)
Subject: Biology
(4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Which one of the following kinds of animals are triploblastic?
- Which one of the following statements is not true about somatic embryogenesis?
- Crocodile and penguin are similar to whale and dogfish in which one of the
- Haploids are more suitable for mutation studies than the diploids. This is because
- What is common between photosynthesis and respiration finally after reaction?
Topics: Neural Control and Chemical Coordination (195)
Subject: Biology (4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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