Q.1
Which among the following group of microorganisms are found in the ducts of cow’s mammary glands?
  • a) Micrococci
  • b) Microbacteria
  • c) Lactobacilli
  • d) Coliforms
Q.2
Which of the following microorganism is eliminated in canned foods?
  • a) Lactobacillus
  • b) Clostridium botulinum
  • c) Mycobacterium tuberculosis
  • d) Coxiella burnetii
Q.3
Bacterial cell grown on hydrocarbon wastes from the petroleum industry are a source of _____________
  • a) fats
  • b) vitamins
  • c) carbohydrates
  • d) proteins
Q.4
Which of the following microorganism produces dextran?
  • a) Leuconostoc mesenteroides
  • b) Streptomyces olivaceus
  • c) Bacillus thuringiensis
  • d) Bacillus polymyxa
Q.5
The principal microorganism for yogurt is ______________________
  • a) Leuconostoc citrovorum
  • b) Streptococcus lactis
  • c) Streptococcus thermophilus
  • d) Lactobacillus acidophilus
Q.6
Which of the following yeast can be used to produce microbial protein?
  • a) Eremothecium ashbyi
  • b) Candida utilis
  • c) Saccharomyces cerevisiae
  • d) Candida milleri
Q.7
Acridine orange is which type of mutagen?
  • a) chemical compounds
  • b) transposons
  • c) base analog
  • d) intercalating agents
Q.8
Lipopolysaccharide in cell walls is characteristic of?
  • a) Algae
  • b) Fungi
  • c) Gram-negative bacteria
  • d) Gram-positive bacteria
Q.9
Which of the following are present in teichoic acids?
  • a) glycerol residues
  • b) ribitol residues
  • c) ribitol or glycerol residues
  • d) glucose residues
Q.10
Which of the following are true for cytoplasmic membrane?
  • a) site of generation of protonmotive force
  • b) hydrophilic barrier
  • c) hydrophobic barrier
  • d) hydrophobic barrier and site of generation of protonmotive force
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