Which of the following statements concerning the electron-transport chain is true?
A. Water serves as the final electron acceptor.
B. The chemiosmosis model refers to movement of water.
C. Chemiosmosis forms carbon dioxide.
D. Hydrogen ions are pumped across the plasma membrane.
E. Electrons pass from one electron carrier to another in the electron transport chain.
Answer: E
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If the filtration membrane were made more porous, how would you expect the glomerular filtration rate to change?
A. Increase B. Decrease C. No change
The anterior connection between the two pubic bones is
A) diarthrotic. B) an example of a symphysis. C) a condylar joint. D) actually comprised of three separate joints. E) diarthrotic and an example of a symphysis.
Both the left and right atria receive blood from:
A) arteries. B) veins. C) the lungs. D) the ventricles.
Lymph nodes range in diameter from
A) 1 nm to 10 nm. B) 1 inch to 2 inches. C) 1 mm to 25 mm. D) 1 cm to 25 cm. E) 1 cm to 1 inch.