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Biology Class 9 Chapter 6 Enzymes-3
1.
The activity of an enzyme can be enhanced by?
a) Activators
b) Inhibitors
c) Drugs
d) None of these
2.
The inorganic non-protein part of an enzyme is known as?
a) Cofactor
b) Prosthetic group
c) Coenzyme
d) Active site
3.
Which one of the following is an inorganic cofactor?
a) Na
b) Flavin
c) Heme
d) None
4.
If organic cofactors are tightly bound to enzyme, they are called as?
a) Prosthetic groups
b) Coenzymes
c) Active sites
d) Passive sites
5.
If organic cofactors are loosely attached with enzyme, they are called as?
a) Coenzymes
b) Prosthetic groups
c) Active sites
d) Passive sites
6.
Which one of the following is a coenzyme?
a) All of these
b) Riboflavin
c) Thiamine
d) Folic acid
7.
In which one of the following industries, enzymes are used?
a) All of these
b) Food industry
c) Paper industry
d) Brewing industry
8.
Which one of the following enzymes is used for the removal of protein stains from clothes?
a) Protease
b) Lipase
c) Carbohydrase
d) Amylase
9.
With the increase in temperature, the rate of enzymatic reaction?
a) Increases
b) Decreases
c) Remains constant
d) None
10.
Metal ions are?
a) Cofactors
b) Coenzymes
c) Prosthetic groups
d) None of these
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