Which characteristic is NOT one attributed to a second messenger?
A) intracellular signaling molecules
B) molecules that can easily pass across membrane bilayers
C) molecules that can act as allosteric effectors for signaling proteins
D) molecules that can be rapidly converted between active and inactive forms
E) molecules that are synthesized in response to receptor/signal interactions

Question

Quizplus · Accepted Answer

Second messengers are not molecules that can easily pass across membrane bilayers. Rather, they are typically small molecules or ions that transmit signals from cell surface receptors to intracellular effectors.

Which Characteristic Is NOT One Attributed to a Second Messenger