Question

The muscarinic ACh receptors are formed from only a single subunit and do not contain ____________ like the ____________ ACh receptors. Rather, binding of ACh to the muscarinic receptor activates a complex of proteins in the cell membrane known as ____________ , because their activity is influenced by GDP and GTP, guanosine nucleotides.

Answer 1

Answer:

Ion channels

nicotinic ACh receptors

G-proteins

Explanation:

Acetylcholine (ACh) receptors are membrane proteins that are activated when  the neurotransmitter,acetylcholine binds. There are two types of ACh receptors:

1. Nicotinic ACh receptors

2. Muscarinic ACh receptors

These receptors are classified of defined according to their binding affinities to molecules.