Bacterial shape is determined by
a. tubulin and actin
b. cell membrane
c. cytoskeleton
d. s-layers
e. outer membrane
Answer: c. cytoskeleton
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An increase in the extracellular concentration of salts will cause body cells to ____ water and ____.
A. lose, shrink B. lose, swell C. gain, shrink D. gain, swell E. metabolize, heat up
All of the following statements are true concerning
mycorrhizae EXCEPT that a. the fungus may penetrate into root cells. b. mycorrhizae increase the surface area for absorption. c. roots obtain minerals from the fungus. d. the fungus provides the plant with nitrogen-rich compounds. e. the plant provides the fungus with sugar.
Which of the following statements is TRUE of glycolysis?
A) It can be performed only by bacteria. B) It produces a net gain of FADH. C) It produces a net gain of ATP. D) It produces more ATP than does aerobic respiration. E) It only takes place under anaerobic conditions.
A woman with a beard most likely has a malfunctioning
A. pituitary. B. pancreas. C. adrenal cortex. D. adrenal medulla. E. thyroid.