The inner mitochondrial membrane contributes to the formation of a proton gradient mainly because it
A) contains ATP synthase complex.
B) is the location of specific transporter proteins.
C) is a barrier to protons.
D) is not rich in proteins.
E) is rich in proteins.
C) is a barrier to protons.
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Fossils
(a) are remains of organisms. (b) are formed when organic materials are replaced with minerals. (c) provide evidence of evolution. (d) are all of the above.
Which of the following is not an activity of viral reverse transcriptase?
A. RNA degradation activity B. RNA-dependent DNA synthesis C. DNA-dependent RNA synthesis D. DNA-dependent DNA synthesis E. All of the choices given are activities of reverse transcriptase.
The increase in the concentration of toxicants up the food chain is called:
a. bioaccumulation. b. biological magnification. c. detoxification. d. organic magnification. e. none of the above.
The sense of smell is unique because it
A. works in conjunction with the sense of taste to produce a combined smell-taste effect. B. has direct connections to the limbic system and associated emotions. C. may be associated with vivid memories. D. All of the choices are correct.