Proton motive force can be used for
a. transport of molecules into or out of the cell.
b. cell locomotion.
c. generating ATP.
d. all of the above.
Answer: D
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Ecosystem services include processes that increase the quality of the abiotic environment. Which of the following processes would fall under this category?
I) Keystone predators have a marked effect on species diversity. II) Green plants produce the oxygen we breathe. III) The presence of land plants builds soil. IV) The presence of diverse wetlands helps in flood control. A) only I and III B) only II and IV C) only I, II, and IV D) only II, III, and IV E) only I, II, and III
The cells of all muscle tissues are called __________
Fill in the blank(s) with the appropriate word(s)
The Carboniferous Period is extremely significant to our current society because
A. mammals diversified. B. human evolution began in the period. C. plants and animals first adapted to a terrestrial environment during this period. D. the Carboniferous forests turned into the coal that fuels modern society.
Acetyl can be produced directly from
A. CoA. B. glucose. C. proteins. D. pyruvic acid.