Initiation of visual impulse is associated with
Correct Answer: Photoisomerization and hydrolysis of visual purple
Description: Ans. (b) Photoisomerization and hydrolysis of visual purple(Ref: Ganong, 25th ed/p. 179)On exposure to light, there is conversion of 11 cis retinal to All trans retinal (photoisomerization) and hydrolysis of visual pigment
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Physiology
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