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Question-1
Enzyme first used for nitrogen fixation
(A)
nitrogenase
(B)
nitroreductase
(C)
transferase
(D)
transaminase.
Question-2
Co-factor (prosthetic group) is holoenzyme. It is
(A)
loosely attached organic part
(B)
loosely attached inorganic part
(C)
accessory non-protein substance firmly
(D)
none of these.
Question-3
Some of the enzymes, which are associated in converting fats into carbohydrates, are present in
(A)
microsomes
(B)
glyoxysomes
(C)
liposomes
(D)
golgi bodies.
Question-4
An organic substance bound to an enzyme and essential for its activity is called
(A)
isoenzyme
(B)
coenzyme
(C)
holoenzyme
(D)
apoenzyme.
Question-5
Role of enzyme in reactions is to/as
(A)
decrease activation energy
(B)
increase activation energy
(C)
inorganic catalyst
(D)
none of the above.
Question-6
The catalytic efficiency of two different enzymes can be compared by the
(A)
formation of the product
(B)
pH of optimum value
(C)
Km value
(D)
molecular size of the enzyme.
Question-7
Which factor is responsible for inhibition of enzymatic process during feed back?
(A)
substrate
(B)
enzymes
(C)
end product
(D)
temperature
Question-8
Enzymes having slightly different molecular structure but performing identical activity are
(A)
holoenzymes
(B)
isoenzymes
(C)
apoenzymes
(D)
coenzymes.
Question-9
The enzyme enterokinase helps in the conversion of
(A)
caesinogen into caesin
(B)
trypsinogen into trypsin
(C)
pepsinogen into pepsin
(D)
proteins into polypeptides.
Question-10
In which one of the following enzymes, is copper necessarily associated as an activator?
(A)
carbonic anhydrase
(B)
tryptophanase
(C)
lactic dehydrogenase
(D)
tyrosinase.
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Plus 2 Biology Science
CBSE
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Plant Reproduction
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Kingdom Monera
Plant Kingdom
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Digestive System And Nutrition
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Cell Reproduction
Human Genetics & Genetic Disorders
Mendelian & Postmendelian Genetics
Genes & Chromosomes
Biomolecules
Enzymes
Cell Respiration
Cell Respiration
Kingdom Fungi
Aging And Death
Common Human Diseases
Evolution
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