Microbial Growth [GATE (Graduate Aptitude Test in Engineering) Microbiology]: Questions 1 - 4 of 12

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Question 1

Microbial Growth

Appeared in Year: 2019

Question

Match List-Ⅰ List-Ⅱ▾

Match the culture media to their uses

List-Ⅰ (Culture Media)List-Ⅱ (Uses)
(A)

Enriched media

(i)

chemically undefined media for growing bacteria

(B)

Differential media

(ii)

distinguishing one bacterium from another

(C)

Selective media

(iii)

identifying certain bacteria from mixed culture

(D)

Complex media

(iv)

cultivating fastidious bacteria

Choices

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

a.

  • (ii)
  • (iii)
  • (iv)
  • (i)

b.

  • (iii)
  • (ii)
  • (i)
  • (iv)

c.

  • (iv)
  • (ii)
  • (iii)
  • (i)

d.

  • (i)
  • (iv)
  • (iii)
  • (ii)

Question 2

Microbial Growth

Appeared in Year: 2019

Question

MCQ▾

Secondary metabolites such as penicillin from mold are produced during the________.

Choices

Choice (4)Response

a.

lag phase

b.

decline phase

c.

idiophase

d.

log phase

Question 3

Microbial Growth

Appeared in Year: 2015

Question

Numeric Answer▾

A bacterial culture is grown using fructose as the sole source of carbon and energy. The bacterial biomass concentrations immediately after inoculation and at the end of the growth phase are and , respectively. Assuming complete utilization of the substrate, the bacterial growth yield (Y) on fructose is ________

Question 4

Microbial Growth
Edit

Appeared in Year: 2015

Question

Numeric Answer▾

The doubling time (in minutes) of a bacterium with a specific growth rate of 2.3 h-1 in 500 ml of growth medium is ________

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