Isomerases

Q. Epimerase belongs to which of the following classes of enzymes?

1. Hydrolases
2. Ligases
3. Isomerases
4. Oxidoreductases

Q. When the digestive enzyme carboxypeptidase binds to the substrate, it causes a change in the chemical bonds of the substrate to form the product. This model of enzyme activity is known as

1. lock and key model.
2. allosteric model.
3. induced fit model.
4. enzyme substrate complex model.
5. inhibitor model.

Q. Different molecular forms of an enzyme having the same substrate specificity are

1. Coenzymes
2. Zymogens
3. Isoenzymes
4. Allosteric enzymes

Q. Epimerase belongs to which of the following classes of enzymes?

1. Hydrolases
2. Ligases
3. Isomerases
4. Oxidoreductases

Q. Epimerase belongs to which of the following classes of enzymes?

1. Isomerases
2. Hydrolases
3. Ligases
4. Oxidoreductases.

Q. RuBisCo constitutes

1. 25% of the chloroplast protein
2. 11% of the chloroplast protein
3. 4% of the chloroplast protein
4. 16% of the chloroplast protein

Q. Enzymes that catalyse interconversion of optical, geometrical or positional isomers are called as

1. Ligases
2. Lyases
3. Isomerases
4. Hydrolases

Q. Part of active site of enzyme which is involved in substrate holding is known as

1. Turnover number
2. Catalytic group
3. Activation site
4. Buttressing group

Q. Enzymes are basically made of

1. Nucleic acids
2. Vitamins
3. Proteins
4. Fats