Question

Choose the CORRECT statement about erythrocytes. Select one: a. The bone marrow is primarily responsible for...

Choose the CORRECT statement about erythrocytes. Select one: a. The bone marrow is primarily responsible for filtering old erythrocytes from the blood. b. Erythrocytes lives for about a year in the blood. c. The liver is responsible for filtering out old erythrocytes from the blood. d. The body does not recycle any of the components of destroyed erythrocytes. e. Erythrocytes are produced in the bone marrow from hemocytoblasts.

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Answer #1

Correct answer

Option e - Erythrocytes are produced in the bone marrow from hemocytoblasts

Explanation:

According to the monopyletic theory all blood cells arise from a single common stem cell called the hemocytoblast.

It is a pluripotent cell capable of transforming into RBC, WBC and platelet.

Incorrect answer:

Option a - incorrect - bone marrow is responsible for RBC production

Option b - incorrect - a mature RBC can live for 100 - 120 days

Option c - incorrect - spleen filters out old RBCs

Option d - incorrect - iron is recirculated in the body with help of transferring.

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