Microbiology

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Q. Which metabolic pathway occurs in the cytoplasm and breaks down glucose?
  • A. Krebs cycle
  • B. Glycolysis
  • C. Electron transport chain
  • D. Beta-oxidation
Q. Which microorganism is commonly used in the biological treatment of wastewater?
  • A. Escherichia coli
  • B. Bacillus subtilis
  • C. Pseudomonas aeruginosa
  • D. Activated sludge bacteria
Q. Which microorganism is commonly used in the production of penicillin?
  • A. Bacillus subtilis
  • B. Penicillium chrysogenum
  • C. Escherichia coli
  • D. Saccharomyces cerevisiae
Q. Which microorganism is known for causing botulism from improperly canned foods?
  • A. Staphylococcus aureus
  • B. Clostridium botulinum
  • C. Bacillus cereus
  • D. Listeria monocytogenes
Q. Which microorganism is known for causing malaria?
  • A. Plasmodium
  • B. Giardia
  • C. E. coli
  • D. Staphylococcus
Q. Which microorganism is often associated with the treatment of high-strength industrial wastewater?
  • A. Lactobacillus
  • B. Methanogens
  • C. Streptococcus
  • D. Bifidobacterium
Q. Which microorganism is primarily responsible for the fermentation of soybeans to produce soy sauce?
  • A. Aspergillus oryzae
  • B. Lactobacillus
  • C. Saccharomyces cerevisiae
  • D. Bacillus subtilis
Q. Which microorganism is responsible for causing malaria?
  • A. Plasmodium falciparum
  • B. Bacillus anthracis
  • C. Clostridium botulinum
  • D. Vibrio cholerae
Q. Which microorganism is responsible for the majority of urinary tract infections?
  • A. Escherichia coli
  • B. Staphylococcus aureus
  • C. Streptococcus pneumoniae
  • D. Candida albicans
Q. Which microorganism is used in the production of antibiotics other than penicillin?
  • A. Streptomyces
  • B. Bacillus
  • C. Lactobacillus
  • D. Clostridium
Q. Which microorganism is used in the production of yogurt?
  • A. Lactobacillus
  • B. Salmonella
  • C. Clostridium
  • D. Bacillus anthracis
Q. Which microorganism is utilized in the production of ethanol through fermentation?
  • A. Lactobacillus
  • B. Saccharomyces cerevisiae
  • C. Clostridium acetobutylicum
  • D. Aspergillus niger
Q. Which milk product is fermented to produce yogurt?
  • A. Cream
  • B. Skim milk
  • C. Whole milk
  • D. Milk with added cultures
Q. Which milk product is typically lower in calories?
  • A. Whole milk
  • B. 2% milk
  • C. Skim milk
  • D. Cream
Q. Which mold is known for producing aflatoxins, potent carcinogens?
  • A. Aspergillus flavus
  • B. Penicillium notatum
  • C. Rhizopus oryzae
  • D. Cladosporium herbarum
Q. Which molecule is responsible for bringing amino acids to the ribosome during translation?
  • A. mRNA
  • B. tRNA
  • C. rRNA
  • D. DNA
Q. Which mutation type results in a change in a single amino acid in a protein?
  • A. Silent mutation
  • B. Nonsense mutation
  • C. Missense mutation
  • D. Frameshift mutation
Q. Which nutrient is crucial for the synthesis of nucleic acids in bacteria?
  • A. Glucose
  • B. Nitrogen
  • C. Phosphorus
  • D. Sulfur
Q. Which nutrient is eggs a good source of, beneficial for eye health?
  • A. Omega-3 fatty acids
  • B. Lutein
  • C. Iron
  • D. Calcium
Q. Which of the following antibiotics is effective against Gram-positive bacteria?
  • A. Ciprofloxacin
  • B. Vancomycin
  • C. Aztreonam
  • D. Gentamicin
Q. Which of the following bacteria is a common cause of bacterial meningitis in young adults?
  • A. Neisseria meningitidis
  • B. Streptococcus pneumoniae
  • C. Haemophilus influenzae
  • D. Listeria monocytogenes
Q. Which of the following bacteria is commonly associated with food poisoning from undercooked poultry?
  • A. Escherichia coli
  • B. Salmonella enterica
  • C. Listeria monocytogenes
  • D. Clostridium botulinum
Q. Which of the following bacteria is known for causing tuberculosis?
  • A. Escherichia coli
  • B. Mycobacterium tuberculosis
  • C. Staphylococcus aureus
  • D. Salmonella enterica
Q. Which of the following bacteria is known for forming endospores?
  • A. Bacillus anthracis
  • B. Escherichia coli
  • C. Neisseria gonorrhoeae
  • D. Streptococcus pyogenes
Q. Which of the following bacteria is known for its characteristic grape-like clusters?
  • A. Streptococcus
  • B. Staphylococcus
  • C. Bacillus
  • D. Corynebacterium
Q. Which of the following bacteria is known for producing a characteristic green pigment on culture media?
  • A. Pseudomonas aeruginosa
  • B. Klebsiella pneumoniae
  • C. Streptococcus pneumoniae
  • D. Listeria monocytogenes
Q. Which of the following bases is NOT found in RNA?
  • A. Adenine
  • B. Cytosine
  • C. Thymine
  • D. Uracil
Q. Which of the following best describes transduction?
  • A. Transfer of DNA via direct contact
  • B. Transfer of DNA via bacteriophages
  • C. Uptake of free DNA from the environment
  • D. Replication of plasmids
Q. Which of the following conditions is NOT typically caused by Staphylococcus aureus?
  • A. Pneumonia
  • B. Meningitis
  • C. Food poisoning
  • D. Osteomyelitis
Q. Which of the following describes bacilli bacteria?
  • A. Spherical
  • B. Rod-shaped
  • C. Spiral
  • D. Filamentous
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