LABORATORY REVIEW
ENZYME CATALYSIS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The enzyme sucrase increases the rate at which sucrose is broken down into glucose and fructose. Sucrase works by
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increasing the amount of free energy of the reaction.
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lowering the activation energy of the reaction.
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decreasing the equilibrium constant of the reaction.
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supplying energy to speed up the reaction.
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changing the shape of the active site.
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Explanation:
Detailed explanation-1: -Sucrase, another activity of the dextrinase/isomaltase enzyme, cleaves sucrose to glucose and fructose.
Detailed explanation-2: -Invertase is an enzyme that catalyzes the hydrolysis (breakdown) of sucrose (table sugar) into fructose and glucose.
Detailed explanation-3: -The enzymes sucrase and lactase are capable of catalyzing the hydrolysis of sucrose and lactose, respectively.
Detailed explanation-4: -Sucrase is an example of an enzyme, a type of biological catalyst. Enzymes are macromolecules-most often proteins-that speed up chemical reactions by lowering activation energy barriers.
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