Control of Micro-Organisms [GATE (Graduate Aptitude Test in Engineering) Microbiology]: Questions 5 - 9 of 14

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Question 5

Control of Micro-Organisms

Appeared in Year: 2019

Question

MCQ▾

Chloramphenicol and tetracycline are broad spectrum antibiotics which inhibit bacterial growth by targeting.

Choices

Choice (4)Response

a.

cell wall synthesis

b.

protein synthesis

c.

DNA synthesis

d.

RNA synthesis

Question 6

Control of Micro-Organisms

Appeared in Year: 2019

Question

MCQ▾

Which of the following radiation methods is used in preserving food from spoilage by microorganisms?

Choices

Choice (4)Response

a.

Ionizing

b.

Non-ionizing

c.

Microwaves

d.

Radio waves

Question 7

Control of Micro-Organisms
Edit

Appeared in Year: 2016

Question

Numeric Answer▾

The decimal reduction time (D121) for Clostridium botulinum spores is 0.2 min. The time required to reduce the spore count from 1012 to one spore at 121°C is________ minutes.

Question 8

Control of Micro-Organisms

Appeared in Year: 2016

Question

Match List-Ⅰ List-Ⅱ▾

Match the antibiotics given in Group I with appropriate targets from Group II.

List-Ⅰ (Group I)List-Ⅱ (Group II)
(A)

Erythromycin

(i)

DNA gyrase

(B)

Nalidixic acid

(ii)

Aminoacyl tRNA

(C)

Rifampin

(iii)

50S ribosomal subunit

(D)

Tetracycline

(iv)

RNA polymerase

Choices

Choice (4)Response
  • (A)
  • (B)
  • (C)
  • (D)

a.

  • (iii)
  • (i)
  • (iv)
  • (ii)

b.

  • (iii)
  • (ii)
  • (iv)
  • (i)

c.

  • (ii)
  • (i)
  • (iv)
  • (iii)

d.

  • (i)
  • (ii)
  • (iii)
  • (iv)

Question 9

Control of Micro-Organisms

Appeared in Year: 2018

Question

Match List-Ⅰ List-Ⅱ▾

Match the antimicrobial agents in group I with their category/mode of action in group II.

List-Ⅰ (Column-I)List-Ⅱ (Column-II)
(A)

Tetracycline

(i)

antifungal agent

(B)

Amoxicillin

(ii)

inhibition of nucleic acid synthesis

(C)

Fluoroquinolones

(iii)

inhibition of protein synthesis

(D)

Amphotericin B

(iv)

beta lactam antimicrobial

Choices

Choice (4)Response
  • (A)
  • (B)
  • (C)
  • (D)

a.

  • (ii)
  • (i)
  • (iii)
  • (iv)

b.

  • (iii)
  • (i)
  • (ii)
  • (iv)

c.

  • (ii)
  • (i)
  • (iv)
  • (iii)

d.

  • (iii)
  • (iv)
  • (ii)
  • (i)

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