All of the following statements about competitive and non-competitive inhibitors are true EXCEPT:(a) Competitive inhibitors are structurally similar to anenzyme’s substrate and bind to the enzyme’s allostericsite.(b) Competitive inhibitors work by competing with a sub-strate for binding to an enzyme’s active site.(c) Noncompetitive inhibitors can bind at sites other thanthe active site of an enzyme, distorting the tertiary pro-tein structure, which alters the shape of the active site,rendering it ineffective for substrate binding.(d) Some noncompetitive inhibitors bind reversibly whilesome bind irreversibly to their enzyme.(e) b and d.
Enzyme kinetics
In biochemistry, enzymes are proteins that act as biological catalysts. Catalysis is the addition of a catalyst to a chemical reaction to speed up the pace of the reaction. Catalysis can be categorized as either homogeneous or heterogeneous, depending on whether the catalysts are distributed in the same phase as that of the reactants. Enzymes are an essential part of the cell because, without them, many organic processes would slow down and thus will affect the processes that are important for cell survival and sustenance.
Regulation of Enzymes
A substance that acts as a catalyst to regulate the reaction rate in the living organism's metabolic pathways without itself getting altered is an enzyme. Most of the biological reactions and metabolic pathways in the living systems are carried out by enzymes. They are specific for their works and work in particular conditions. It maintains the best possible rate of reaction in the most stable state. The enzymes have distinct properties as they can proceed with the reaction in any direction, their particular binding sites, pH specificity, temperature specificity required in very few amounts.
All of the following statements about competitive and non-
competitive inhibitors are true EXCEPT:
(a) Competitive inhibitors are structurally similar to an
enzyme’s substrate and bind to the enzyme’s allosteric
site.
(b) Competitive inhibitors work by competing with a sub-
strate for binding to an enzyme’s active site.
(c) Noncompetitive inhibitors can bind at sites other than
the active site of an enzyme, distorting the tertiary pro-
tein structure, which alters the shape of the active site,
rendering it ineffective for substrate binding.
(d) Some noncompetitive inhibitors bind reversibly while
some bind irreversibly to their enzyme.
(e) b and d.
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