Which of the following events is NOT depicted in the figure?
a. the reduction of an oxygen molecule
b. formation of a high energy phosphatephosphate bond
c. transfer of electrons and hydrogen atoms from a food molecule to a coenzyme
d. generation of an electro chemical gradient across the mitochondrial inner membrane
c. transfer of electrons and hydrogen atoms from a food molecule to a coenzyme
Although the electroncarrying
coenzymes NADH and FADH2 are depicted in the figure, the catabolic pathways that
provide the highenergy
electrons are not shown.
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Which hypothesis states that new species are prevented from entering a community by the existing
species?
a. equilibrium theory of island biogeography b. facilitation hypothesis c. inhibition hypothesis d. intermediate hypothesis e. tolerance hypothesis
Which group of protists consumes CO2 and produces O2 for much of Earth, serving as the base of food webs in lakes, streams, and the oceans?
A. algae B. radiolarians C. amoeba D. protozoa E. slime mold
A species is found to exist in one of three
colors. Assuming an epistatic interaction, now many genes would be involved? a. 0. b. 1. c. 2. d. 3. e. 6.
Plant roots compete with Nitrosomonas and Nitrobacter for ammonium in soil. When these bacterial groups acquire the ammonium, they turn it into
A) N2 gas through nitrification. B) N2 gas through denitrification. C) NO3- through nitrification. D) NO3- through denitrification.