When you consider the contribution of NADH and FADH2, how many of the 32 total ATP molecules
produced in cellular respiration come from the citric acid cycle?
a. 32
b. 28
c. 24
d. 20
e. 16
D
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Which of the following may be a reason for bacteria not having nucleosomelike structures?
A. Bacteria need to respond quickly to the environment and therefore need ready access to the genome. B. Cell division in bacteria occurs in as little as 15 minutes. C. A much larger proportion of the bacterial chromosome codes for proteins. D. Higher rates of metabolism in bacteria mean that a much larger proportion of the DNA is being transcribed or replicated at a given time. E. All of these choices are correct.
An Olympic marathon runner probably has
more __ than does an Olympic weight lifter.
a. white muscle fibers b. red muscle fibers c. creatine phosphate d. stored ATP e. oxygen
If transcription of this gene occurs from left to right in the accompanying diagram, which DNA strand is the coding (non-template) strand?
A) impossible to determine B) B C) C D) D E) E
The inorganic nonprotein components that participate in enzyme catalysis are known as
A. substrates. B. reactants. C. products. D. cofactors. E. coenzymes.