In the reaction, 6CO2 + 6H2O ?C6H12O6 + 6O2, carbon dioxide is being ____.
A. condensed
B. reduced
C. oxidized
D. phosphorylated
E. hydrolyzed
B. reduced
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Athletes who take synthetic steroids can become sterile due to lack of sperm production. This is because of negative feedback on which of the following?
A. the epididymis B. the testes C. the vas deferens D. the prostate E. the hypothalamus
A transverse plane is indicated by
a. A. b. B. c. C. d. D. e. E.
Cilia lining the respiratory tubes beat mucus upward in order to:
a. moisten the bronchioles. b. conduct the mucus that contains particles to the pharynx and away from the lungs.
c. provide mucus to the lungs to prevent them from dehydrating. d. lubricate the throat for easier swallowing. e. promote gas exchange by providing mucus for the respiratory surfaces.
What would happen if the plasma membrane were composed solely of phospholipids and no proteins?
A) Immune reactions would not be affected. B) The movement of molecules across the membrane would not be affected. C) All movement of molecules across the membrane would cease. D) Simple diffusion and osmosis would continue to occur. E) Only water would be able to pass through the membrane.