When light strikes a molecule of photopigment, the membrane potential undergoes

Question

When light strikes a molecule of photopigment, the membrane potential undergoes a(n)______, which in turn _______.

a. action potential; releases an excitatory transmitter onto the gangliion cell

b. hyperpolarization; reduces release of an inhibitory transmitter onto the biolar cell

c. depolarization; releases an excitatory transmitter onto the ganglion cell

d. action potential; releases an inhibitory transmitter onto ganglion cell

e. hyperpolarization; increases the release of an inhibitory transmitter onto the bipolar cell

Explanation / Answer

When light strikes a molecule of photopigment, the membrane potential undergoes a hyperpolarization, which in turn causes ion channels to close and stops the release of neurotransmitters.

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