If ATP synthase had a mutation in the F1 complex portion of the protein, which function of ATP synthase would most likely be affected?
A. The flow of protons through the channel
B. The rotation of the rotor
C. The insertion of the enzyme into the membrane
D. The conversion of ADP and Pi to ATP
Answer: D
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All cells have:
a. a nucleus, but not necessarily DNA b. a plasma membrane, but not necessarily DNA c. cytoplasm, but not necessarily a plasma membrane d. cytoplasm and a plasma membrane, but not necessarily DNA e. cytoplasm, a plasma membrane, and DNA
Amino acids in a polypeptide are part of
a. the primary structure. b. carbohydrates. c. lipids. d. nucleic acids. e. most macromolecules.
The bases of RNA are the same as those of DNA with the exception that RNA contains
A. cysteine instead of cytosine. B. cytosine instead of guanine. C. uracil instead of adenine. D. uracil instead of thymine.
What is the outcome of the process illustrated in the accompanying figure.?
a. One male and one female cell b. Four new but genetically distinct cells c. Two new but genetically distinct cells d. Two new genetically identical cells that differ genetically from what they were before e. Four new genetically identical cells that differ genetically from what they were before