For erythropoiesis to proceed normally, the progenitor cells must receive adequate supplies of which of the following?
(1)amino acids
(2)calcium
(3)iron
(4)vitamin B₁₂
(5)vitamin K
(6)vitamin A

Question

Quizplus · Accepted Answer

Erythropoiesis is the process of synthesizing new red blood cells, and for that, progenitor cells require adequate supplies of nutrients. Amino acids are the building blocks of proteins, and they are necessary for cell growth and division. Calcium ions play a crucial role in signaling pathways that control cell differentiation and proliferation. Iron is a fundamental component of hemoglobin, the molecule that carries oxygen in red blood cells. Vitamin B₁₂ is necessary for the production of DNA, nerve cells, and red blood cells. Conversely, vitamin K and A do not have direct roles in erythropoiesis. Therefore, the best choice is D, which includes only amino acids, iron, and vitamin B₁₂.

For Erythropoiesis to Proceed Normally, the Progenitor Cells Must Receive