Enzyme Engineering in Biotechnology MCQs | Page - 2

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M

Mr. Dubey • 100.64K Points
Coach

Q. Which of the following is not a reason for selected source to be used readily for the production of enzymes?

  • (A) Socio-economical
  • (B) Political
  • (C) Extraction procedure
  • (D) Geographical
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M

Mr. Dubey • 100.64K Points
Coach

Q. Which of the following chemical is not used to isolate enzymes from cell free extract?

  • (A) Polyethyleneimine
  • (B) Polyvinylpyrrolidone
  • (C) EDTA
  • (D) Magnesium chloride
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M

Mr. Dubey • 100.64K Points
Coach

Q. . . . . . . . . is a divalent chelator which can be used to extract enzymes from different sources.

  • (A) Sucrose
  • (B) NaOH
  • (C) Lysozyme
  • (D) EDTA
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M

Mr. Dubey • 100.64K Points
Coach

Q. Glycosidases, lipases and proteases belong to which class of enzymes?

  • (A) Hydrolases
  • (B) Ligase
  • (C) Isomerases
  • (D) Transferases
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M

Mr. Dubey • 100.64K Points
Coach

Q. Which of the following is not a technique for the extraction of enzymes by chemical methods?

  • (A) Alkali treatment
  • (B) Osmotic shock
  • (C) Detergent treatment
  • (D) Homogenization
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M

Mr. Dubey • 100.64K Points
Coach

Q. An enzyme that joins the ends of two strands of nucleic acid is:

  • (A) Polymerase
  • (B) Ligase
  • (C) Synthetase
  • (D) Helicase
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M

Mr. Dubey • 100.64K Points
Coach

Q. Blocking of enzyme action by blocking its active site is called as:

  • (A) Allosteric inhibition
  • (B) Feedback inhibition
  • (C) Competitive inhibition
  • (D) Non-competitive inhibition
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M

Mr. Dubey • 100.64K Points
Coach

Q. The procedure in which cell lysis occur because of shock waves which are formed due to collapses occurring in buffered solution containing cells is referred to as . . . . . . . .

  • (A) Alkali treatment
  • (B) Osmotic shock
  • (C) Ultrasonication
  • (D) Detergent treatment
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M

Mr. Dubey • 100.64K Points
Coach

Q. Which one of the following is not an example for ionic-detergent?

  • (A) Sodium dodecyl sulphate (SDS)
  • (B) Tween
  • (C) Sodium lauryl sulphate (SLS)
  • (D) Cetyl trimethyl ammonium bromide
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M

Mr. Dubey • 100.64K Points
Coach

Q. The general mechanism is that an enzyme acts by:

  • (A) Reducing the activation energy
  • (B) Increasing activation energy
  • (C) Decreasing pH value
  • (D) Increasing the pH value
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