The manufacture of ATP in both photosynthesis and cellular respiration is made possible by

-the existence of a proton gradient across specific membranes.
-the action of ATP synthase.
-energy from the movement of electrons.
-the action of electron-accepting proteins.
-all of the above


-all of the above

Biology & Microbiology

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Four of the five choices listed below are lobes of the

cerebrum. Select the exception. a. parietal b. squamosal c. frontal d. occipital e. temporal

Biology & Microbiology

Biological nitrogen fixation is accomplished by

A) protozoans. B) bacteria. C) fungi. D) plants.

Biology & Microbiology

Functional magnetic resonance imaging is used to observe brain function by:

a. examining intracellular second messengers. b. monitoring gene activation. c. examining changes in blood flow to different parts of the brain. d. measuring neurotransmitter-receptor binding effectiveness. e. measuring hormone levels.

Biology & Microbiology

If a bacterium with the ability to survive the effects of an antibiotic "pops up" in a population, it most likely 

A. resulted from spontaneous mutation. B. increased in number before the antibiotic began to be used. C. was introduced from another species. D. was created by the antibiotic.

Biology & Microbiology