Multiple Choice
What role do the kidneys play in erythrocyte homeostasis?
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17. The Blood
Erythrocytes
Multiple Choice
What is the primary function of erythrocytes (red blood cells) in the human body?
A
To transport oxygen from the lungs to the body's tissues
B
To digest and absorb nutrients in the small intestine
C
To produce antibodies to fight infections
D
To regulate blood pressure by constricting blood vessels
Verified step by step guidance1
Understand the role of erythrocytes: Erythrocytes, or red blood cells, are specialized cells in the blood primarily responsible for transporting oxygen.
Identify the key component in erythrocytes: Hemoglobin is the protein within erythrocytes that binds to oxygen molecules.
Explore the oxygen transport process: Oxygen is inhaled into the lungs, where it binds to hemoglobin in erythrocytes.
Consider the delivery mechanism: Erythrocytes circulate through the bloodstream, delivering oxygen to tissues throughout the body.
Differentiate from other functions: Recognize that erythrocytes do not digest nutrients, produce antibodies, or regulate blood pressure, which are functions of other cells and systems.
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