Question

In an experiment, the enzyme lactase is added to milk in a test tube. The products obtained are glucose and galactose. Which of these CORRECTLY explains the function of the enzyme in this reaction?

a. The enzyme molecules collide with the substrate and break it into simpler products.
b. The enzyme has active sites where the substrate binds with the enzyme to break down the sugar.
c. The substrate binds at the non-active sites of the enzyme, where it is broken down into simpler compounds.
d. The substrate breaks the bonds of the enzyme, resulting in the formation of simpler products.

Answer 1

Explanation:

Answer :-

36m

Given -

Volume of cuboid = 48384m³

Length of cuboid = 48m

Height of cuboid = 28m

To find -

The breadth of the cuboid

Solution -

Let the breadth be written as "B"

Formula for the volume of cuboid = L × B × H

Where ,

L = Length

B = Breadth

H = Height

On substituting the values -

Volume of cuboid = L × B × H

48384 = 48 × B × 28 m

48384 = 1344 × B

B = 48384/1344

B = 36m

\therefore∴ Breadth of the cuboid will be 36m

Verification -

Volume of cuboid = L × B × H

Volume of cuboid = 48 × 36 × 28 m

Volume of cuboid = 48384m³

Hence, LHS = RHS

Hence proved !

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Answer 2

b. The enzyme has active sites where the substrate binds with the enzyme to break down the sugar.

This is the right answer according to me.