In mitochondria, exergonic redox reactions _____
A) are the source of energy driving prokaryotic ATP synthesis
B) are directly coupled to substrate-level phosphorylation
C) provide the energy that establishes the proton gradient
D) reduce carbon atoms to carbon dioxide
E) are coupled via phosphorylated intermediates to endergonic processes
Answer: C
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Sperm are stored in the ____ after they are produced
a. epididymis b. seminiferous tubules c. penis d. prostate gland e. vas deferens
An ecosystem would include all of the following except
A. a community that may include producers, consumers, and decomposers. B. the biosphere, with its resources and functioning systems. C. populations of organisms in the same species. D. nonliving air, water, soils, and other components in an area. E. None of the answer choices is correct.
Allosteric inhibition generally results from
a. excess substrates. b. binding of regulatory molecules at sites other than the active sites. c. a change in the temperature of the system. d. a lack of coenzymes. e. changes in pH
The genes along a particular linear chromosome are illustrated in the figure above. The frequency of crossover events between these loci will be least frequent for genes
A) a and b. B) b and c. C) c and d. D) d and e. E) a and e.