Blood Components and Functions Quiz

What percentage of centrifuged blood is composed of plasma?

• 45%

• 55%

• 1%

• 60%

Which component of centrifuged blood contains white blood cells and platelets?

• Plasma

• Buffy Coat

• Red Blood Cells

• Hemoglobin

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

• To bind carbon dioxide

• To bind oxygen

• To produce energy

• To fight infections

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Where does erythropoiesis primarily occur in the body?

• Liver

• Bone marrow

• Spleen

• Lymph nodes

Which hormone regulates the production of red blood cells?

• Insulin

• Erythropoietin

• Adrenaline

• Thyroxine

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NGSS.HS-LS1-3

What is a common cause of pernicious anemia?

• Lack of vitamin B12

• Iron deficiency

• Abnormal hemoglobin

• Excessive bleeding

What is the main characteristic of sickle cell anemia?

• Low iron levels

• Abnormal hemoglobin causing RBCs to sickle

• Lack of vitamin B12

• Excessive white blood cells

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What process allows white blood cells to move through capillary walls?

• Phagocytosis

• Diapedesis

• Erythropoiesis

• Hemostasis

What is the role of thrombocytes in the blood?

• Transport oxygen

• Initiate blood clotting

• Fight infections

• Carry nutrients

From which cells are thrombocytes formed?

• Erythrocytes

• Megakaryocytes

• Leukocytes

• Lymphocytes

Tags

NGSS.HS-LS1-4