In some cases, inhibitors or activators of
enzyme-catalyzed reactions act by
a. binding to the substrates.
b. affecting the supply of ATP.
c. reversibly binding to an enzyme's allosteric
site.
d. reducing or increasing the concentration of
enzymes.
e. binding to the products
C
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Urea is a small molecule that is transported out of most cells by passive diffusion, but some cells, including kidney cells, have urea-facilitated transporters
Given an assay to measure the amount of urea on one side of the cell plasma, design an experiment to distinguish which mechanism an uncharacterized cell you have isolated uses to transport urea. Include graphs, if this aids in your discussion. What will be an ideal response?
Select the best response to the question. ? ?Chlamydia's long incubation period, (7-21 days between exposure and becoming symptomatic) contributes to what clinical concern?
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Why is the ratio of male to female births roughly 50:50?
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Normally, the mold Neurospora can synthesize all 20 amino acids. A certain strain of this mold cannot grow in minimal nutritional medium, but grows only when the amino acid leucine is added to the medium. This strain
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