Which of the following is true about receptors?
A) all receptors are located on the plasma membrane
B) receptors bind only soluble signal molecules
C) receptors form covalent bonds with their ligands
D) all receptors are proteins

Question

Quizplus · Accepted Answer

Receptors are biomolecules that recognize and respond to specific ligands, such as hormones, neurotransmitters, or antigens. Most receptors are proteins that are either located on the plasma membrane or in the cytoplasm or nucleus. Some receptors can also bind insoluble ligands, and they typically do not form covalent bonds with their ligands. Therefore, option D is the correct answer.

Which of the Following Is True About Receptors