Q. Enzymes that catalyze the transfer of atom or group between two molecules is known as . . . . . . . .
β
Correct Answer: (B)
Transferases
Enzyme Engineering in Biotechnology MCQs | Page - 4
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Q. In . . . . . . . . treatment, certain molecules interact through ionic or Vander wall forces which leads to solubilization of phospholipids and lipoprotein which in turn, increases membrane permeability directing to cell lysis.
β
Correct Answer: (C)
Detergent
Q. Which of the following is an RNA dependent DNA synthetase
β
Correct Answer: (C)
Reverse transcriptase
Q. The pH at which the net charge on the enzyme molecule is zero is called . . . . . . . .
β
Correct Answer: (C)
Isoelectric point
Q. The technique in which the cells are subjected to cold temperature of about -15° C to -25° C is referred to as . . . . . . . .
β
Correct Answer: (B)
Freezing
Q. Which of the following is an advantage of enzymes over chemical catalysts?
β
Correct Answer: (A)
High productivity, less material cost
Q. What happens to Vmax and Km in case of uncompetitive inhibition when I = Ki'?
β
Correct Answer: (A)
Lowers to 0.5 Vmax and 0.5 Km
Q. Trypsin exhibits which kind of specificity?
β
Correct Answer: (B)
Group specificity
Q. Loss of activity which may be restored by the removal of inhibitor is referred to as . . . . . . . .
β
Correct Answer: (A)
Reversible inhibition
Q. The enzyme which specifically catalyzes β (1 → 4) glycosidic linkages of NAM (N-acetyl muramic acid) and NAG (N-acetyl glucosamine) present in bacterial peptidoglycan is . . . . . . . .
β
Correct Answer: (C)
Lysozyme
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