Cells can increase their responsiveness to an external chemical regulator by
A) increasing the number of their transmembrane receptors by exocytosis.
B) decreasing the number of their transmembrane receptors by endocytosis.
C) uncoupling their receptors from the second message generator.
D) increasing the number of their transmembrane receptors by endocytosis.
E) mutating their extracellular receptors so that the affinity for the chemical regulator is reduced.

Question

Quizplus · Accepted Answer

Increasing the number of transmembrane receptors by exocytosis allows more receptors to be present on the cell surface, enhancing the cell's ability to detect and respond to the external chemical regulator.

Cells Can Increase Their Responsiveness to an External Chemical Regulator