Extra Credit A scientist is studying rod cells in the retina…
Extra Credit A scientist is studying rod cells in the retina and observes that when exposed to light, the rod cell’s membrane hyperpolarizes, leading to less neurotransmitter release. How does photoisomerization of retinal trigger this response? What happens to opsin after retinal absorbs light, and how does this affect ion channels? How does reduced neurotransmitter release from rods influence signal transmission to bipolar cells and ganglion cells? How might this process differ in cone cells under bright light conditions?
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