Bacterial shape is determined by

a. tubulin and actin
b. cell membrane
c. cytoskeleton
d. s-layers
e. outer membrane


Answer: c. cytoskeleton

Biology & Microbiology

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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

Biology & Microbiology

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.

Biology & Microbiology

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.

Biology & Microbiology

A woman with a beard most likely has a malfunctioning

A. pituitary. B. pancreas. C. adrenal cortex. D. adrenal medulla. E. thyroid.

Biology & Microbiology