Enzyme Engineering in Biotechnology MCQs

Question 1

Which of the following is an example for Oxidoreductases?

Accepted Answer

Glucose oxidase

Answer

Glutathione synthetase

Answer

Aspartate aminotransferase

Answer

Histidase

Question 2

Which of the following is the non-protein component of the enzyme?

Accepted Answer

All of these

Answer

Cofactor

Answer

Activator

Answer

Coenzyme

Question 3

Which of the following is a thermo stable DNA polymerase

Accepted Answer

All of these

Answer

Taq polymerase

Answer

Vent polymerase

Answer

Pfu polymerase

Question 4

Which of the following enzyme cannot be extracted from liver?

Accepted Answer

Lactose synthase

Answer

Glucokinase

Answer

Arginase

Answer

Glutaminase

Question 5

In the human body optimum temperature for enzymatic activities is:

Accepted Answer

37-degree celsius

Answer

25-degree celsius

Answer

20-degree celsius

Answer

15-degree celsius

Question 6

Mg+2 is an inorganic activator for enzymes:

Accepted Answer

Phosphatase

Answer

Carbonic anhydrase

Answer

Amylase

Answer

Enterokinase

Question 7

. . . . . . . . inhibition represent the following rate equation. $$V = {{\left( {{{{V_{\max }}} \over {1 + {{\left[ I \right]} \over {{K_i}}}}}} \right)\left[ S \right]} \over {{K_m} + \left[ S \right]}}$$

Accepted Answer

Non-competitive inhibition

Answer

Substrate inhibitio

Answer

Competitive inhibition

Answer

Product inhibition

Question 8

Alkali treatment is not advisable for which of the following?

Accepted Answer

Extracellular enzymes

Answer

Bacterial enzymes in cell wall

Answer

Enzymes in cell wall of plant sources

Answer

Membrane bound enzymes in eukaryotic cell

Question 9

Eco R1 is a

Accepted Answer

Endonuclease

Answer

Polymerase enzyme

Answer

Ligase

Answer

Exonuclease