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At the Arterial End of the Tissue Capillaries

Question 1

Multiple Choice

At the arterial end of the tissue capillaries,


A) O2 diffuses from tissue cells into the blood, while CO2 diffuses from the blood into tissue cells.
B) O2 diffuses from the blood into tissue cells, while CO2 diffuses from tissue cells into the blood.
C) both O2 and CO2 diffuse from the blood into tissue cells.
D) both O2 and CO2 diffuse from tissue cells into the blood.
E) O2 diffuses from the blood into tissue cells, but there is no net movement of CO2.

Correct Answer:

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