If drugs are less effective when taken together than when each is taken separately, they are called
A. energetic.
B. antagonistic.
C. additive.
D. synergistic.
B
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The soils in which most plants do best are ____
a. mixtures of mainly sand and silt b. sandy soils c. soils made mostly of humus d. clay soils e. loams
Substrate level phosphorylation ____
a. involves the direct transfer of a phosphate group from a substrate b. requires the presence of oxygen c. requires the presence of NADH d. produces most of the ATPs during aerobic respiration e. is not part of fermentation pathways
The most complex wayfinding mechanism is ____, in which animals use both a compass and a mental
map of the area.
a. piloting b. orienteering c. compass orientation d. migration e. navigation
In a cell, the concentration of glucose-6-phosphate is 83 ?M and of fructose-6-phosphate is 14 ?M. The ?G°' = 410 cal/mol for the conversion of glucose-6-phosphate to fructose-6-phosphate
Based upon this information, the ?G' for this reaction (in cal/mol) is A) ?644. B) ?63.7. C) 0. D) 27. E) 644.