The Stimulus for the Production of New Red Blood Cells

Question

The stimulus for the production of new red blood cells is
A) decreased levels of hemoglobin in the blood.
B) declining oxygen levels.
C) increased carbon dioxide levels.
D) decreased levels of iron.

Accepted Answer

The production of new red blood cells is regulated by a hormone called erythropoietin, which is mainly produced in the kidneys in response to declining oxygen levels. When oxygen levels are low, the kidneys release erythropoietin, which stimulates the bone marrow to produce new red blood cells. Therefore, declining oxygen levels are the stimulus for the production of new red blood cells.