Nicotinic receptors found on muscle cells require binding of _______ molecules of ACh and are composed of _______ subunits, a _______ subunit, one ?, and either a ? or an ? subunit.
A) two; two ?1; ?1
B) five; two ?2; ?2
C) two to five; two ?1; ?1
D) two; two ?7; ?4

Question

Quizplus · Accepted Answer

Nicotinic receptors on muscle cells require the binding of two molecules of acetylcholine (ACh) and are composed of five subunits: two alpha (α) subunits, one beta (β1) subunit, one gamma (γ), and either a delta (δ) or an epsilon (ε) subunit.

Nicotinic Receptors Found on Muscle Cells Require Binding of _______