Many prokaryotes can switch between using aerobic respiration and fermentation depending on oxygen availability; these organisms are termed which of the following?
a. obligate anaerobes
b. facultative anaerobes
c. necessary anaerobes
d. facultative aerobes
b. facultative anaerobes
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When water melts from a solid ice cube to a liquid, its volume ________ and its mass ________.
A. Decreases; increases B. Decreases; stays the same C. Increases; stays the same D. Increases; decreases
Which of the following is the most correct interpretation of the figure?
A) Inorganic phosphate is created from organic phosphate. B) Energy from catabolism can be used directly for performing cellular work. C) ADP + i are a set of molecules that store energy for catabolism. D) ATP is a molecule that acts as an intermediary to store energy for cellular work. E) i acts as a shuttle molecule to move energy from ATP to ADP.
Which of the following statements about DNA replication is INCORRECT?
A. It begins at multiple origins of replication sites along eukaryotic chromosomes. B. Each strand within the DNA double helix is used as a template for synthesis of a new strand. C. It requires that both strands of the double helix be separated from each other. D. It proceeds with the addition of new nucleotides to the 3? end of a growing DNA strand. E. It is powered by the hydrolysis of ATP.
In base excision repair, a whole segment of DNA is removed and resynthesized
A. true B. false