Imagine that a cell can be treated with a drug that prevents proteins from undergoing large conformational changes. Which transport proteins would be unaffected by this drug treatment?
A. Na+/K+ ATPase
B. H+/sucrose symporter
C. Fructose uniporter
D. Aquaporin
E. All transport proteins would be affected
D. Aquaporin
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Cell walls of bacteria (domain Bacteria) usually consist of _____________, a network of polysaccharide molecules connected by polypeptide cross-links.
Fill in the blank(s) with the appropriate word(s).
The primary reason for the daylight migration of many pelagic animals to deeper waters is:
a. escape from visual predators. b. escape from the harmful effects of the sun. c. preference for the colder waters of the deep. d. the abundance of food in deeper waters.
Carl Woese named the ancient aggregate of DNA, RNA, proteins, and lipids a
A. progenote. B. molecule. C. liposome. D. domain. E. cell.
How might an increase in the rate of photosynthesis affect the conditions necessary for cellular respiration?
What will be an ideal response?