How do photoreceptors regenerate inactive cis -retinal?
A) The cell degrades the active form and synthesizes new, inactive proteins.
B) Enzymes convert trans -retinal back to the inactive conformation
C) trans -retinal reverts back to the inactive state on its own.
D) Active trans -retinal is digested by proteases to regenerate the inactive form.
E) The mechanism is not known.

Question

Quizplus · Accepted Answer

Enzymes convert trans-retinal back to its inactive cis-retinal form, allowing the photoreceptor cells to reset and be ready to detect another photon of light.

How Do Photoreceptors Regenerate Inactive Cis -Retinal