Eye
Photosensitive compound in human eye is made up of:
Select the correct option:
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About This Question
- Subject
- biology
- Chapter
- neural control and coordination
- Topic
- eye
- Difficulty
- Medium
- Year
- 2025
Solution
Correct Answer:
Opsin and Retinal
- Visual Pigments: The photoreceptor cells (rods and cones) contain light-sensitive proteins.
- Composition: These photopigments consist of Opsin (a protein bound to the membrane) and Retinal (an aldehyde of Vitamin A).
- Light Action: When light strikes, retinal dissociates from opsin, causing a structural change in opsin that triggers an action potential.
- Conclusion: Opsin and Retinal together form the photosensitive compound.
This medium difficulty biology question is from the chapter neural control and coordination, covering the topic of eye. It appeared in the 2025 exam.
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