Textbook Question
Which antigens does a person with blood type A− have on the surface of his or her erythrocytes?
a. A antigens
b. B antigens
c. Rh antigens
d. Both a and c are correct.
e. All of the above
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17. The Blood
Erythrocytes: Hemoglobin
Multiple Choice
Erythrocytes transport which of the following substances in the blood?
A
Hormones
B
Carbon dioxide
C
Nutrients
D
Oxygen
Verified step by step guidance1
Understand the primary function of erythrocytes (red blood cells), which is to transport gases in the blood.
Recall that erythrocytes contain hemoglobin, a protein that binds to oxygen molecules.
Recognize that oxygen is transported from the lungs to the tissues via hemoglobin in erythrocytes.
Consider the role of erythrocytes in transporting carbon dioxide, which is also carried back to the lungs for exhalation, but the primary focus is on oxygen transport.
Conclude that while erythrocytes are involved in gas exchange, their main function is to transport oxygen, not hormones or nutrients.
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