a. Describe the process of erythropoiesis. b. What name is given to the immature cell type released to the circulation? c. How does it differ from a mature erythrocyte?

Video transcript

Hey, everyone. Let's take a look at this question together. During which stage of erythropoiesis do cells produce large quantities of hemoglobin? Is it answer choice? A when myeloid stem cells transform into pro erythroblast, answer choice B when pro erythroblast transform into basophilic erythroblast answer choice C. When basophilic erythroblast transform into polychromatic erythroblast or answer choice D when polychromatic erythroblast transform into Ortho chromatic erythroblast, let's work this problem out together to try to figure out which of the following answer choices is the correct answer. So something that we can recall about the stages of erythropoiesis involving the production of hemoglobin is that while those early stages of erythropoiesis involve differentiation and cell growth, we know that those early stages involve no significant hemoglobin production. And we know that the polychromatic erythroblast stage marks the beginning of substantial hemoglobin synthesis, which continues throughout different stages until that mature red blood cell is formed. So the formation of the polychromatic erythroblast is responsible for the production of those large quantities of hemoglobin. And looking at our answer choices in answer choice C when the basophilic erythroblast transform into the polychromatic erythroblast. We note that that is that stage that is the beginning of the substantial production of hemoglobin. So answer choice C is the correct answer. Since that stage of erythropoiesis involves the cells producing large quantities of hemoglobin. I hope you found this video to be helpful. Thank you and goodbye.