Red Blood Cells and Hemoglobin Overview

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What is the primary function of the biconcave disc shape of red blood cells?

To increase the surface area to volume ratio

Which of the following is NOT a characteristic of a red blood cell?

Possesses a nucleus and organelles

What is the role of hemoglobin in red blood cells?

To bind to oxygen and transport it throughout the body

What is the primary stimulus for the production of erythropoietin (EPO)?

<p>Decreased oxygen levels in the body</p> Signup and view all the answers

What is the role of vitamin B12 in the process of erythropoiesis?

<p>It is necessary for normal stem cell divisions</p> Signup and view all the answers

What is the role of the intrinsic factor produced in the stomach during erythropoiesis?

<p>It is required for the absorption of vitamin B12</p> Signup and view all the answers

Which of the following is NOT a function of red blood cells?

<p>Participating in immune responses</p> Signup and view all the answers

What is the primary site of erythropoiesis (red blood cell production)?

<p>Bone marrow</p> Signup and view all the answers

What is the primary function of hemoglobin in red blood cells?

<p>Oxygen transport</p> Signup and view all the answers

Which of the following plasma proteins is involved in the clotting process?

<p>Fibrinogen</p> Signup and view all the answers

What is the primary function of hematocrit?

<p>Assessing the proportion of red blood cells in blood</p> Signup and view all the answers

Which of the following is NOT a component of the red blood cell structure?

<p>Nucleus</p> Signup and view all the answers

Which of the following is the correct sequence of erythropoiesis?

<p>Proerythroblast &gt; Basophilic Erythroblast &gt; Polychromatophilic Erythroblast &gt; Normoblast &gt; Reticulocyte &gt; RBC</p> Signup and view all the answers

What is the fate of the protein portion of hemoglobin in old RBCs?

<p>It is broken down into amino acids</p> Signup and view all the answers

Which of the following statements about iron recycling is correct?

<p>Iron binds to transferrin and returns to bone marrow where it can be used to make new hemoglobin</p> Signup and view all the answers

What is the final product of heme breakdown in the hemoglobin recycling process?

<p>Urobilin and stercobilin</p> Signup and view all the answers

Which condition can result from problems with iron uptake or recycling?

<p>Iron deficiency anemia</p> Signup and view all the answers

Which of the following is a characteristic of white blood cells (WBCs)?

<p>All of the above</p> Signup and view all the answers

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