Enzyme Biology Test 01
Total Questions: 22
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A ) They make biochemical reactions to produced spontaneously
B ) They lower the activation energy of a reaction ✅
C ) They are not very specific in their choice of substances
D ) They are needed in large quantities
A ) Carbohydrates
B ) Lipids
C ) Nucleic acids
D ) Proteins ✅
A ) Break hydrogen bonds in proteins
B ) Help facilitate enzyme activity ✅
C ) Increase activation energy
D ) Are composed of proteins
A ) Required by all enzymes
B ) Loosely attached with enzymes
C ) Proteins in nature
D ) Tightly bound to enzyme ✅
A ) All active sites have been occupied by substrate molecules ✅
B ) They enzyme molecules have denatured
C ) More substrate acted as inhibitor
D ) More substrate has disturbed the pH of the medium
A ) Cofactor
B ) Inhibitor
C ) Coenzyme
D ) Substrate ✅
A ) Inhibitors
B ) Substrate
C ) Cofactors ✅
D ) Coenzymes
A ) 86°C
B ) 37°C ✅
C ) 38°C
D ) 39°C
A ) Activate enzymes
B ) Start a reaction ✅
C ) Speed up a reaction
D ) None of these
A ) Emil fischer ✅
B ) Menscher
C ) Koshland
D ) Saugeo
A ) Emil Fischer
B ) Koshland ✅
C ) Meischer
D ) Schleiden
A ) Amylase
B ) Protease ✅
C ) Lipase
D ) Pepsin
A ) Lipase ✅
B ) Amylase
C ) Pepsin
D ) Trypsin
A ) 200
B ) 2000 ✅
C ) 3000
D ) 3500
A ) Saturation ✅
B ) Denaturation
C ) Denaturation
D ) Inhibition
A ) Never changes
B ) Forms no chemical bond with substrate
C ) Determines by its structure the specificity of the enzyme. ✅
D ) Looks like a lump projecting from the surface of an enzyme.
A ) They consist of proteins with or without a non-protein part
B ) They charge the rate of catalyzed reaction
C ) They have sensitive to heat
D ) They are non-specific in their action ✅
A ) Activators
B ) Prosthetic group ✅
C ) Co-enzyme
D ) Prosthetic group and coenzyme
A ) Reaction will be more fast
B ) At the same speed as that with enzyme
C ) More product will be formed
D ) Speed of the reaction will be slow
A ) Is the small catalytic region of enzyme molecule ✅
B ) Is non-charge bearing site
C ) Is non-catalytic region of enzyme molecule
D ) Is not a part of an enzyme
A ) Specific shape and specific amino acids ✅
B ) Specific prosthetic group
C ) Capability to form specific bonds
D ) Specific coenzyme
A ) 1890
B ) 1800
C ) 1894 ✅
D ) 1900