BIOMOLECULES AND ENZYMES

BIOLOGY

ENZYMES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
An enzyme serves as a place where a chemical reaction can occur because-
A
the enzyme is a substrate.
B
the enzyme is one of the reactants in the reaction.
C
the charge on the enzyme’s active site is the same as the charge on the substrates.
D
the shape of the substrates fits perfectly into the shape of the enzyme’s active site.
Explanation: 

Detailed explanation-1: -In biology and biochemistry, the active site is the region of an enzyme where substrate molecules bind and undergo a chemical reaction.

Detailed explanation-2: -Yes, the shape of the enzyme is crucial to determining the function. Enzymes are specialized proteins that can either build up or break down reactants. The area of the enzyme where the substrate binds is specifically shaped to fit that substrate. If the enzyme is denatured, it cannot bind to the substrate.

Detailed explanation-3: -Specificity is a property of the enzyme and describes how restrictive the enzyme is in its choice of substrate; a completely specific enzyme would have only one substrate.

Detailed explanation-4: -Enzymes perform the critical task of lowering a reaction’s activation energy-that is, the amount of energy that must be put in for the reaction to begin. Enzymes work by binding to reactant molecules and holding them in such a way that the chemical bond-breaking and bond-forming processes take place more readily.

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