Which of the following cell organelles produces secretory vesicles?
A)Lysosome
B)Mitochondrion
C)Peroxisome
D)Golgi apparatus
E)Rough endoplasmic reticulum
D)Golgi apparatus
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Cell shrinking, also known as crenation, occurs when a cell is placed into a(n) _________ solution
A. isotonic B. hypertonic C. hypotonic D. exergonic
Reabsorption and secretion at the kidneys involve __________.
osmosis diffusion carrier-mediated transport All of the listed responses are correct.
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
The "lub-dup" heart sounds are produced by:
A. the walls of the atria and ventricles slapping together during a contraction. B. the blood hitting the walls of the ventricles and arteries, respectively. C. the closing of the atrioventricular valves ("lub") and the closing of the semilunar valves ("dup"). D. the closing of the semilunar valves ("lub") and the closing of the atrioventricular valves ("dup").