activation of an enzyme can be achieved bu When a noncompetitive inhibitor binds

Question

activation of an enzyme can be achieved bu When a noncompetitive inhibitor binds to the regulatory site on an enzyme molecule, the: a. active site amino acids are rearranged in the primary the protein b. active site is more accessible to the substrate c. active site is unchanged d. conformation of the molecule as a whole may be changed, leading to reduced accessibility to the substrate The abnormal hemoglobin (called hemoglobin S) that is responsible for sickle cell anemia differs from normal hemoglobin in that: a. The heme has no iron The heme is Fe^3+ rather than Fe^2+ c. There is an incorrect amino acid in the primary structure d. The heme is concave rather than planar Which enzymes hydrolyze proteins? a. Catalases b. oxidases

Explanation / Answer

In non competitive inhibition, binding of the the inhibitor takes place at the site other than the active site and it may alters the configuration or conformation of the substrate and blocks the reaction.

Therefore option 'd' is correct

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