BIOMOLECULES AND ENZYMES

BIOLOGY

ENZYMES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
How many different chemical reactions can a certain enzyme usually catalyse?
A
a large number
B
about 10
C
only 1
D
3 to 4
Explanation: 

Detailed explanation-1: -In addition, enzymes are highly specific in their action; that is, each enzyme catalyzes only one type of reaction in only one compound or a group of structurally related compounds.

Detailed explanation-2: -Types of catalytic reactions Catalysts can be divided into two main types-heterogeneous and homogeneous. In a heterogeneous reaction, the catalyst is in a different phase from the reactants. In a homogeneous reaction, the catalyst is in the same phase as the reactants.

Detailed explanation-3: –The same catalyst can’t be used for more than one reaction. . Either less or more pH, the activity of enzymes gets declined. Hence, one enzyme for one reaction.

Detailed explanation-4: -Enzymes are proteins, which have a specific 3D tertiary structure, with a specifically shaped active site. The active site can only bind one substrate to form an enzyme-substrate complex, so can therefore only catalyse one reaction.

Detailed explanation-5: -One enzyme can be used for many different types of chemical reactions. Enzymes are highly specific for the substrate.

There is 1 question to complete.