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Biology Class 9 Chapter 6 Enzymes1
1.
The set of biochemical reactions that occur in the bodies of living organisms is known as?
a) Metabolism
b) Respiration
c) Transpiration
d) Photosynthesis
2.
The biochemical reactions in which larger molecules are synthesized are called as?
a) Anabolism
b) Catabolism
c) Respiration
d) Transpiration
3.
During anabolism, energy is?
a) Utilized
b) Released
c) Excreted
d) None
4.
The process in which the larger molecules are broken down is called as?
a) Catabolism
b) Anabolism
c) Transpiration
d) Guttation
5.
During catabolism, energy is?
a) Released
b) Utilized
c) Absorbed
d) None
6.
Substances that speed up the chemical reaction are called as?
a) Enzymes
b) Toxins
c) Antibiotics
d) Alcohols
7.
The substance at which the enzymes act is known as?
a) Substrate
b) Active site
c) Cofactor
d) Product
8.
The minimum amount of energy required for the initiation of a chemical reaction is known as?
a) Activation energy
b) Ionization energy
c) Electron affinity
d) Electronegativity
9.
Enzymes ___ the activation energy.
a) Lower
b) Increase
c) Does not affect
10.
Enzymes are?
a) Proteins
b) Lipids
c) Sugars
d) Sterols
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