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White raven [17]
3 years ago
11

Lactase is essential for digesting lactose in milk. This enzyme is specific for this sugar. Why?Molecules and active sites vary

in size; only properly sized molecules can fit.There is a precise compatibility between the active site and the lactose molecule.Specificity refers to the action of the enzyme, such as hydrolysis, and relatively few molecules can be hydrolyzed.Reaction-specific enzymes assume a fit by folding around the most numerous substrate molecules.
Biology
1 answer:
VladimirAG [237]3 years ago
8 0

Answer:

There is a precise compatibility between the active site and the lactose molecule.

Explanation:

An enzyme's active site has a specific shape, where only the substrate it is designed for can fit. It's much like a puzzle, where you must have the right pieces join together or else you wont get a coherent picture.

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