When kidney cells sense low levels of oxygen in blood they secrete erythropoietin. In this particular signaling pathway (response to low oxygen), secretion of erythropoietin represents which step of the signal transduction process?
A) recognition of the signal
B) signal transduction
C) relay molecules
D) cellular effect

Question

Quizplus · Accepted Answer

Secretion of erythropoietin represents the cellular effect of the signal transduction process, where the low oxygen signal is converted into a response by the kidney cells. This helps in the production of red blood cells to increase oxygen-carrying capacity in the blood.

When Kidney Cells Sense Low Levels of Oxygen in Blood