Question

A. Would sucrase be classified as a oxidoreductase, a transferase, a lysase, an isomerase, a hydrolase, or a ligase enzyme? explain your choice. B. Could sucrase be used to break down another disaccharide, such as lactose? explain your reasoning.

Answer 1

Sucrose, a disaccharide (consisting of two monosaccharides), is table sugar.

A digestive enzyme called sucrase catalyses the breakdown of sucrose into its component sugars, fructose and glucose. One type, sucrase-isomaltase, is secreted at the brush boundary of the small intestine. Invertase, a form of the sucrase enzyme that is more frequently found in plants, also hydrolyzes sucrose but does it in a different way.

What does sucrase break down into ?

Maltose is converted to glucose by maltase. Succrase and lactase, respectively, break down other disaccharides like sucrose and lactose. Sucrase and lactase are enzymes that break down sucrose (also known as "table sugar") and lactose (sometimes known as "milk sugar"), respectively, into glucose and fructose.

• Both the breakdown of maltose into glucose and the breakdown of sucrose into glucose and fructose are carried out by the enzyme's sucrase subunit.

Learn more about Sucrase here:

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