試題詳解

20. Which of the following statement about neurotransmitters and hormones is not correct:
(A) Both neurotransmitters and hormones act via binding to specific protein targets called receptors.
(B) Each hormone has its own receptor.
(C) Most receptors are membrane-bound proteins.
(D) Some receptors are soluble proteins that modulate the expression of genes; these are called nuclear receptors.

(E) Membrane-bound receptors of hormones are protein tyrosine kinases.