How can a cell control the rate of an enzyme-catalyzed reaction?

cells can control the rates of reactions involving these enzymes by regulating the movement of substrate molecules through the membrane. organisms may use hormones to carry messages from one part of the organism to another.

Explanation:

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many other transport proteins, often called pumps, move materials against a concentration gradient. active transport drives molecules across a membrane from a region of lower concentration to a region of higher concentration. this process, shown in figure 5.1, uses transport proteins powered by chemi- cal energy.

her next move would be to use agarose gel electrophoresis to separate the dna molecules of varying length and create a dna fingerprint.