What is the substrate of amylase and what are its main sugar products?

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Multiple Choice

What is the substrate of amylase and what are its main sugar products?

Explanation:
Amylase digests starch, a glucose polymer made of both amylose and amylopectin. It works by cleaving internal alpha-1,4 glycosidic bonds, breaking starch into smaller sugars. The substrate is starch, not just amylose, because amylase acts on the starch polymer as a whole. The immediate products are maltose (a glucose disaccharide) and other small dextrins; as digestion continues in the small intestine, maltose is further split into glucose by maltase. So the useful end products for absorption are maltose and glucose.

Amylase digests starch, a glucose polymer made of both amylose and amylopectin. It works by cleaving internal alpha-1,4 glycosidic bonds, breaking starch into smaller sugars. The substrate is starch, not just amylose, because amylase acts on the starch polymer as a whole. The immediate products are maltose (a glucose disaccharide) and other small dextrins; as digestion continues in the small intestine, maltose is further split into glucose by maltase. So the useful end products for absorption are maltose and glucose.

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