Match the cells in the diagram to their respective functions.
The Correct Answer is D,B,C,A,E
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
a) Erythrocytes: These are mature red blood cells and do not have a nucleus.
b) Normoblasts: A normoblast is the last stage of red blood cell development that still has a nucleus. Once the nucleus is ejected, the cell becomes a reticulocyte and then matures into an erythrocyte.
c) Proerythroblasts: This is an earlier precursor stage that still has a nucleus but is not the final nucleated form.
d) Reticulocytes: Reticulocytes are immature RBCs that lack a nucleus but still contain RNA remnants.
Correct Answer is A
Explanation
a) store iron in the liver: Ferritin is an intracellular protein that stores iron and releases it in a controlled fashion. It is primarily found in the liver, spleen, and bone marrow.
b) Absorb iron across intestinal cells: DMT1 (divalent metal transporter 1) and ferroportin are more directly involved in this.
c) Oxidize iron in the peroxisomes: Iron oxidation is not a function of peroxisomes, nor of ferritin.
d) Transport iron in the blood: Transferrin, not ferritin, is responsible for iron transport in plasma.
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