Cellular Receptors May Be Composed Of

Question

Cellular receptors may be composed of
A) proteins.
B) carbohydrates.
C) lipids.
D) combinations of proteins, carbohydrates, and/or lipids.

Accepted Answer

Cellular receptors can be composed of proteins, carbohydrates, and/or lipids. Many receptors are transmembrane proteins with extracellular domains that bind to specific ligands, such as hormones or neurotransmitters, while other receptors may be composed of combinations of carbohydrates and lipids, such as glycolipid and glycoprotein receptors.