Question

question 21
1 pts
to transduce a signal, visual pigments will activate____, which will bond to phosphodiesterase:

camp

ach

adenylate cyclase

the g protein

Explanation:

In visual signal transduction, visual pigments (like rhodopsin) activate the G protein (transducin in the visual system). The activated G protein then interacts with phosphodiesterase. cAMP is involved in other signaling pathways, Ach (acetylcholine) is a neurotransmitter, and adenylate cyclase is involved in cAMP production but not directly in visual pigment - phosphodiesterase interaction here.

Answer:

D. the G protein