AP BIOLOGY

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BIOCHEMISTRY

ENZYMES AND METABOLISM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
These bind to the enzymes and alter the active site. They are ions or small inorganic molecules. The substrate cannot fit without these present.
A
Cofactors
B
Feedback inhibitors
C
pH neutralizers
D
Coenzymes
Explanation: 

Detailed explanation-1: -The induced fit model states an substrate binds to an active site and both change shape slightly, creating an ideal fit for catalysis. When an enzyme binds its substrate it forms an enzyme-substrate complex.

Detailed explanation-2: -The competitive inhibitor binds to the active site and prevents the substrate from binding there. The noncompetitive inhibitor binds to a different site on the enzyme; it doesn’t block substrate binding, but it causes other changes in the enzyme so that it can no longer catalyze the reaction efficiently.

Detailed explanation-3: -The active site of an enzyme is the point of attachment of substrate to form a enzyme substrate complex.

Detailed explanation-4: -Cofactors are inorganic ions such as iron (Fe2+) and magnesium (Mg2+) that help stabilize enzyme conformation and function.

There is 1 question to complete.
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