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Consider the following events that takes place during vision and choose the correct sequence w.r.t. mechanism of vision
(A) Potential difference generated in photoreceptor cell
(B) Light induces dissociation of retinal from opsin
(C) Light rays of visible wavelength focussed on retina
(D) Action potential generated in ganglion cells through bipolar cells
(E) Action potentials transmitted by optic nerves
- a)(C), (B), (A), (D), (E)
- b)(C), (A), (B), (D), (E)
- c)(B), (C), (A), (E), (D)
- d)(C), (B), (A), (E), (D)
Correct answer is option 'A'. Can you explain this answer?
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Most Upvoted Answer
Consider the following events that takes place during vision and choo...
The correct sequence of events in the mechanism of vision is (C), (B), (A), (D), (E).
1. Light rays of visible wavelength focused on the retina (C):
- When light enters the eye, it passes through the cornea, lens, and vitreous humor to reach the retina.
- The lens helps to focus the light onto the retina, specifically onto the region called the fovea centralis, which contains a high concentration of photoreceptor cells.
2. Light induces dissociation of retinal from opsin (B):
- The light energy is absorbed by a pigment called rhodopsin, which is present in the rod cells of the retina.
- Rhodopsin is composed of a protein called opsin and a light-sensitive molecule called retinal.
- When light strikes rhodopsin, retinal undergoes a conformational change, causing it to dissociate from opsin.
3. Potential difference generated in photoreceptor cell (A):
- The dissociation of retinal from opsin triggers a cascade of molecular events within the photoreceptor cell.
- This cascade leads to the generation of a potential difference across the cell membrane of the photoreceptor cell.
- The potential difference is caused by the opening and closing of ion channels, which allows the flow of ions into or out of the cell.
4. Action potential generated in ganglion cells through bipolar cells (D):
- The potential difference generated in the photoreceptor cells is transmitted to the bipolar cells, which are located in the inner nuclear layer of the retina.
- The bipolar cells then transmit the signal to the ganglion cells, which are located in the ganglion cell layer of the retina.
- The transmission of the signal from the photoreceptor cells to the bipolar cells and then to the ganglion cells occurs through chemical synapses.
5. Action potentials transmitted by optic nerves (E):
- The ganglion cells in the retina have long axons that form the optic nerves.
- The action potentials generated in the ganglion cells are transmitted along these optic nerves.
- The optic nerves carry the visual information from the retina to the brain, specifically to the visual cortex, where the information is processed and interpreted.
In summary, the correct sequence is (C), (B), (A), (D), (E), where light rays are focused on the retina, light induces dissociation of retinal from opsin, a potential difference is generated in the photoreceptor cells, action potentials are generated in ganglion cells through bipolar cells, and finally, the action potentials are transmitted by optic nerves to the brain for further processing and interpretation of visual information.
1. Light rays of visible wavelength focused on the retina (C):
- When light enters the eye, it passes through the cornea, lens, and vitreous humor to reach the retina.
- The lens helps to focus the light onto the retina, specifically onto the region called the fovea centralis, which contains a high concentration of photoreceptor cells.
2. Light induces dissociation of retinal from opsin (B):
- The light energy is absorbed by a pigment called rhodopsin, which is present in the rod cells of the retina.
- Rhodopsin is composed of a protein called opsin and a light-sensitive molecule called retinal.
- When light strikes rhodopsin, retinal undergoes a conformational change, causing it to dissociate from opsin.
3. Potential difference generated in photoreceptor cell (A):
- The dissociation of retinal from opsin triggers a cascade of molecular events within the photoreceptor cell.
- This cascade leads to the generation of a potential difference across the cell membrane of the photoreceptor cell.
- The potential difference is caused by the opening and closing of ion channels, which allows the flow of ions into or out of the cell.
4. Action potential generated in ganglion cells through bipolar cells (D):
- The potential difference generated in the photoreceptor cells is transmitted to the bipolar cells, which are located in the inner nuclear layer of the retina.
- The bipolar cells then transmit the signal to the ganglion cells, which are located in the ganglion cell layer of the retina.
- The transmission of the signal from the photoreceptor cells to the bipolar cells and then to the ganglion cells occurs through chemical synapses.
5. Action potentials transmitted by optic nerves (E):
- The ganglion cells in the retina have long axons that form the optic nerves.
- The action potentials generated in the ganglion cells are transmitted along these optic nerves.
- The optic nerves carry the visual information from the retina to the brain, specifically to the visual cortex, where the information is processed and interpreted.
In summary, the correct sequence is (C), (B), (A), (D), (E), where light rays are focused on the retina, light induces dissociation of retinal from opsin, a potential difference is generated in the photoreceptor cells, action potentials are generated in ganglion cells through bipolar cells, and finally, the action potentials are transmitted by optic nerves to the brain for further processing and interpretation of visual information.
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Community Answer
Consider the following events that takes place during vision and choo...
The impulses are transmitted by the optic nerves to the visual cortex area of the brain.
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Consider the following events that takes place during vision and choose the correct sequence w.r.t. mechanism of vision(A) Potential difference generated in photoreceptor cell(B) Light induces dissociation of retinal from opsin(C) Light rays of visible wavelength focussed on retina(D) Action potential generated in ganglion cells through bipolar cells(E) Action potentials transmitted by optic nervesa)(C), (B), (A), (D), (E)b)(C), (A), (B), (D), (E)c)(B), (C), (A), (E), (D)d)(C), (B), (A), (E), (D)Correct answer is option 'A'. Can you explain this answer?
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Consider the following events that takes place during vision and choose the correct sequence w.r.t. mechanism of vision(A) Potential difference generated in photoreceptor cell(B) Light induces dissociation of retinal from opsin(C) Light rays of visible wavelength focussed on retina(D) Action potential generated in ganglion cells through bipolar cells(E) Action potentials transmitted by optic nervesa)(C), (B), (A), (D), (E)b)(C), (A), (B), (D), (E)c)(B), (C), (A), (E), (D)d)(C), (B), (A), (E), (D)Correct answer is option 'A'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Consider the following events that takes place during vision and choose the correct sequence w.r.t. mechanism of vision(A) Potential difference generated in photoreceptor cell(B) Light induces dissociation of retinal from opsin(C) Light rays of visible wavelength focussed on retina(D) Action potential generated in ganglion cells through bipolar cells(E) Action potentials transmitted by optic nervesa)(C), (B), (A), (D), (E)b)(C), (A), (B), (D), (E)c)(B), (C), (A), (E), (D)d)(C), (B), (A), (E), (D)Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider the following events that takes place during vision and choose the correct sequence w.r.t. mechanism of vision(A) Potential difference generated in photoreceptor cell(B) Light induces dissociation of retinal from opsin(C) Light rays of visible wavelength focussed on retina(D) Action potential generated in ganglion cells through bipolar cells(E) Action potentials transmitted by optic nervesa)(C), (B), (A), (D), (E)b)(C), (A), (B), (D), (E)c)(B), (C), (A), (E), (D)d)(C), (B), (A), (E), (D)Correct answer is option 'A'. Can you explain this answer?.
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ample number of questions to practice Consider the following events that takes place during vision and choose the correct sequence w.r.t. mechanism of vision(A) Potential difference generated in photoreceptor cell(B) Light induces dissociation of retinal from opsin(C) Light rays of visible wavelength focussed on retina(D) Action potential generated in ganglion cells through bipolar cells(E) Action potentials transmitted by optic nervesa)(C), (B), (A), (D), (E)b)(C), (A), (B), (D), (E)c)(B), (C), (A), (E), (D)d)(C), (B), (A), (E), (D)Correct answer is option 'A'. Can you explain this answer? tests, examples and also practice NEET tests.
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