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QUESTION
Q183) Identify enzymes a, b, c and d in digestion of carbohydrates ...[KCET 2006 ]

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By acting at random locations along the starch chain, α-amylase breaks down long-chain carbohydrates, ultimately yielding maltotriose and maltose from amylose, or maltose, glucose and "limit dextrin" from amylopectin. Thus “a” must be amylase.
Lactase's primary function is to break down a type of sugar called lactose into two smaller particles called glucose and galactose.. Thus “b” must be lactase.
Maltase enzyme that catalyzes the hydrolysis of the disaccharide maltose to the simple sugar glucose. Thus “c” must be maltase.
Invertase is a carbohydrate-digesting enzyme that splits sucrose (common table sugar) into its component parts, glucose and fructose. Thus “d” must be Invertase
Answer : (b)