SAT - Science - Biology - Microbiology

Question - 1

Mesophilic organisms are those that grow at temperature of

  • A -200C to -70C
  • B -70C to 200C
  • C 250C to 400C
  • D 550Cto 800C

Question - 2

Extra chromosomal genetic material are called

  • A Plasmids
  • B Mesosomes
  • C Ribosomes
  • D Lysosomes

Question - 3

Which of the following are features of the bacterial cell wall?

  • A Peptidoglycan
  • B Flagellin
  • C Lipopolysaccharide teichoic acid
  • D Both A & C

Question - 4

Psychrophillic organisms are those that grow at temperature of

  • A -200C to -70C
  • B -70C to 200C
  • C 250C to 400C
  • D Below 200C

Question - 5

Thermophiles grow best at temperature ___________

  • A 55°C - 80°C
  • B Below 20°C
  • C -7°C to 20°C
  • D 20°C - 30°C

Question - 6

What type of organism that grows on and derives nourishment from dead or decaying organic matter?

  • A Facultative anaerobes
  • B Strict aerobes
  • C Saprophyte
  • D Opportunistic pathogen

Question - 7

What is the exotoxin that causes certain nervous system irregularities by means of retrograde transmission through neurons to the brain?

  • A Botulinum neurotoxin
  • B Tetanospasmin
  • C Exotoxin
  • D Heat stable enterotoxin

Question - 8

Which is found in aquatic animals and reptiles?

  • A E.coli
  • B E.aerogehes
  • C E.clocae
  • D E.tarda

Question - 9

Which can ferment glucose into lactose?

  • A Bacillus
  • B Lactobacillus
  • C Micrococcus
  • D Both A & B

Question - 10

During the stationary phase of bacterial growth, the population of living cell is _____ the population of dying cells?

  • A greater than
  • B smaller than
  • C equal to
  • D increasing faster than
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