The following statements correctly explains the observed effect of the acetylcholine concentration on the rate of the enzyme-catalyzed reaction: The active site of AChE is specific for acetylcholine, and only one substrate molecule can occupy the active site at a time.
<h3 /><h3>Explanation:
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Enzymes are macromolecular biological catalysts that accelerate chemical reactions.
Some of these enzymes include:
- Erepsin that converts peptones and polypeptides into amino acids.
- Maltase that converts maltose into glucose.
- Lactase that This is a significant enzyme that converts lactose into glucose and galactose.
- Sucrase that converts sucrose into glucose and fructose.
Acetylcholinesterase (AChE) is a protein that catalyzes the conversion of acetylcholine to acetate and choline. When the concentration of AChE in an aqueous solution is held constant, the rate of the reaction catalyzed by AChE increases with increasing concentrations of substrate. At low concentrations of acetylcholine, a small increase in the substrate concentration results in a large increase in the reaction rate. At high concentrations of acetylcholine, however, a large increase in the substrate concentration results in only a small increase in the reaction rate.
The following statements correctly explains the observed effect of the acetylcholine concentration on the rate of the enzyme-catalyzed reaction: The active site of AChE is specific for acetylcholine, and only one substrate molecule can occupy the active site at a time.
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