The most diverse of the mammals are the
a. rats.
b. bats.
c. dogs.
d. cats.
e. equines
A
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Which of these groups of algae could you potentially find in a high mountain lake?
a. red b. brown c. green d. cyanobacteria
Each of the following is a good functional match between animal and plant extracellular structures or fibers except
A) elastins–extensins. B) extracellular matrix–cell wall. C) collagens–cellulose. D) proteoglycans–hemicelluloses. E) fibronectins–pectins.
Which phrase best describes the proton-motive force?
a. the amount of energy required to protonate a glucose molecule b. the force needed to move protons into the inner mitochondrial space c. the free energy associated with the removal of hydrogen from NADH d. the combination of a proton and voltage gradient across the membrane
Cyanide poisoning occurs because cyanide inhibits an enzyme in the electron transport pathway. Which of the following is the reason why cyanide poisoning becomes deadly?
A) ATP is no longer produced by chemiosmosis. B) Glycolysis stops. C) Oxygen is reduced to water. D) Cells switch to anaerobic fermentation.