Phototransduction
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Q. Which of the following is true regarding phototransduction along the photoreceptor cell membrane?
a
Light activates rhodopsin.
b
Transducin activates phosphodiesterase (PDE).
c
The transducin/PDE combination converts cGMP to GMP and the drop in cGMP causes the sodium channels to close.
d
All of the above.
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