Question

A neuron became unable to produce an Action Potential after being treated with a drug that inhibits adenylate cyclase. What must be true about this neuron?

a. It is a sensory (afferent) neuron.

b. It is a motor (efferent) neuron.

c. The neuron’s membrane contains receptors that are ion channels.

d. The neuron’s membrane contains receptors that will activate a G protein-linked cascade when bound to the neurotransmitter.

e. The neurotransmitter directly promotes rapid changes in its membrane potential.

Answer 1

Answer

Option D) The neuron’s membrane contains receptors that will activate a G protein-linked cascade when bound to the neurotransmitter.

• G proteins are present inside the cells and facilitate transmission of the sginals from outside a cell to the inside.
• G proteins works with adenylate cyclase to convert ATP into cAMP, a secondary messenger.
• This coonversion is very important for cellular response.
• Inhibition of such as neuron can be acheived by a drug that inhibits adenylate cyclase.