WorksheetsEnzymes and Proteins
Total questions: 15
Worksheet time: 8mins
The place on enzyme where catalytic activity occurs is
Active site
Active spot
Both of these
None of these
The enzymes which are activated in the presence of substrate are
Inducible
Constitutive
Repressible
None of these
Conjugated enzymes have a non-protein part called
Apoenzyme
Cofactor
Holoenzyme
Zymogen
The sulphur containing amino acid is
Cysteine
Lysine
Glycine
Proline
Quaternary structure occurs in proteins having
Single polypeptide chain
No polypeptide chain
Two or more polypeptide chain
None of these
Lock and key model was given by
Fischer
Koshland
Kuhne
Buchner
Which of the following is true for Induced Fit Theory?
Active site is a single entity
Active site is made up of two components
Active site is rigid
Development of transition state is not considered
The most abundant protein in plants as well as the whole biosphere is
Rubisco
Insulin
Collagen
Haemoglobin
In the protein structure, the strongest bond is
Hydrogen bond
Covalent bond
Ionic bond
Hydrophobic bond
The phenomena of destruction of tertiary or quaternary structure of proteins is called
Hydration
Saturation
Dehydration
Denaturation
The addition of water to a variety of bonds which results in cleavage of substrate is due to
Hydrolases
Lyases
Isomerases
Transferases
Glucose 6-phosphate is converted to fructose 6-phosphate by which type of enzymes
Oxidoreductases
Transferases
Ligases
Isomerases
Which of the following is incorrect for enzymes?
Are usually proteinaceous
Increase the rate of chemical reaction
Are consumed at the end of a reaction
Are denatured by high temperature or protein poison
Holoenzyme = __________________ + Cofactor
Coenzyme
Prosthetic group
Apoenzyme
Metal activators
Lactic dehydrogenase is an example of
Zymogens
Isoenzymes
Both of these
None of these
