Erythropoiesis

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

Tags

NGSS.HS-LS1-4

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

Tags

NGSS.HS-LS1-3

What organ releases the hormone erythropoietin (EPO)?

• Bone marrow

• Liver

• Lungs

• Kidney

Tags

NGSS.HS-LS1-3

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

Tags

NGSS.HS-LS1-3

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

Tags

NGSS.HS-LS1-4