In comparing the pulmonary and systemic circulations, the pulmonary circuit ________.
A. sends blood to the lungs, is involved with oxygenating blood, and involves the generation of much larger pressures
B. sends blood throughout the body, is involved with deoxygenating blood, and involves the generation of smaller pressures
C. sends blood throughout the body, is involved with decreasing blood carbon dioxide levels, and involves much lower overall resistance to flow
D. sends blood to the lungs, is involved with oxygenating blood, and involves much lower overall resistance to flow
Answer: D
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One of the unhealthy effects of blood doping is to
A. increase the viscosity of the blood. B. increase the carbon dioxide carrying capacity of the blood. C. increase the oxygen carrying capacity of the blood. D. decrease the blood pressure in the arteries. E. decrease the oxygen carrying capacity of the blood.
Substrate molecules bind to enzymes at the ________ sites
A) amino B) active C) carboxyl D) reactant E) neutral
Using the figure below, identify the labeled part.
1) Label A: ______________________________
2) Label B: ______________________________
3) Label C: ______________________________
4) Label D: ______________________________
5) Label E: ______________________________
6) Label F: ______________________________
7) Label G: ______________________________
8) Label H: ______________________________
9) Label I: ______________________________
10) Label J: ______________________________
11) Label K: ______________________________
12) Label L: ______________________________
13) Label M: ______________________________
14) Label N: ______________________________
15) Label O: ______________________________
16) Label P: ______________________________
17) Label Q: ______________________________
18) Label R: ______________________________
19) Label S: ______________________________
20) Label T: ______________________________
21) Label U: ______________________________
Presynaptic neurons release neurotransmitters by ______________
A) active transport. B) exocytosis. C) diffusion. D) endocytosis.