An enzyme acts by ________ the activation energy.
Increasing
Reducing
Enzymes are made Up of ______.
Fats
Proteins
Vitamins
The coenzyme of riboflavin (B2) is ____ and _____.
NAD, NADP
Thiamine, Coenzyme A
FAD, FMN
The enzyme secreted by pancreas is ________.
Trypsin
Pepsin
Chymotrypsin
What takes part in the digestion of Starch?
Protein
Diastase
Amino acids
________ is a complex of enzymes involved in alcoholic fermentation.
Zymase
Lipase
Invertase
Name the vitamin that is associated with the coenzyme Biocytin.
Nicotinic acid
Thiamine
Biotin
The modulator is an Enzyme precursor.
True
False
______ is an enzyme that joins the ends of two nucleic acid strands.
Polymerase
Ligase
Synthetase
Which of the following enzyme was first isolated and purified in the form of crystals?
Urease
Pepsin
Amylase
Enzymes alter the overall change in free energy for a reaction.
True
False
Which enzyme is responsible for forming the phosphodiester bond between nucleotide base pairs.
Ribonuclease
DNA ligase
Maltase
Name the enzyme that hydrolyses starch to maltose.
Amylase
Lactase
Maltase
Which model is made for the interaction of enzymes and substrates?
Fluid mosaic model
Induced fit model
Lock and key model
The optimum temperature for enzymatic activities in a human body is ____ degrees celsius.
20
32
37
The optimal pH for pepsin activity is ____.
0.1
1.4
4
Cofactor and coenzymes are the parts of the ________.
Holoenzyme
Biochemical reaction
Cells
The zinc cation is a cofactor of the enzyme ________ it is required for enzyme catalysis.
Phosphatase
Chymotrypsin
Maltase
The primary function of phosphorylase is to transfer inorganic phosphate.
True
False
Name the reaction that is catalyzed by Lyase.
Transfer of group from one molecule to another
Formation of bonds
Breaking of bonds
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