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WorksheetsRed Blood Cell Life Cycle
Total questions: 10
Worksheet time: 5mins
During phase 3 of the production of erythrocytes, the ejection of nucleus is from _______ and formation of _______.
normoblasts, erythrocytes
normoblasts, reticulocytes
hemocytoblasts, proerythroblasts
erythroblasts, normoblasts
An early site of erythropoiesis during embryonic development is _______.
bone marrow only
yolk sac and bone marrow
yolk sac and liver
liver and bone marrow
What are Juvenile RBCs?
Reticulocyte
Erythrocyte
Hemocytoblast
Proerythroblast
EPO release is triggered by _______.
increased RBCs due to Hypoxia
increased oxygen availability
increased haemoglobin per RBC
increased tissue demand for oxygen
What organ releases the hormone erythropoietin (EPO)?
Bone marrow
Liver
Lungs
Kidney
What is Erythropoiesis?
The formation of mature leukocytes
The formation of mature erythrocytes
The formation of mature blood cells
The formation of mature erythrocytes and leukocytes
Erythropoiesis is important to _______.
maintain the oxygen level in the body
increase the oxygen level in the body
decrease the oxygen level in the body
replace the oxygen in the body
What is the average lifespan of RBCs?
110 days
120 days
130 days
140 days
What happens during phase 2 of the developmental pathway of erythrocytes production?
Ribosome synthesis
Hemoglobin accumulation
Ejection of nucleus
Losing the filamentous RNA
Ribosome synthesis in early erythroblast becomes late erythroblast. Early erythroblast is also known as _______.
basophilic erythroblast
polychromatic erythroblast
orthochromatic erythroblast
multipotential hematopoietic stem cell
