Microbiology & Immunology

Q. Which bacterium is known for causing cholera?
  • A. Vibrio cholerae
  • B. Salmonella enterica
  • C. Clostridium botulinum
  • D. Listeria monocytogenes
Q. Which cells are primarily responsible for the production of antibodies?
  • A. T cells
  • B. B cells
  • C. Macrophages
  • D. Dendritic cells
Q. Which chemical agent is commonly used for high-level disinfection?
  • A. Ethanol
  • B. Chlorine
  • C. Glutaraldehyde
  • D. Hydrogen peroxide
Q. Which cytokine is known for its role in promoting the differentiation of T cells?
  • A. Interleukin-1
  • B. Interleukin-2
  • C. Tumor necrosis factor
  • D. Interferon-gamma
Q. Which cytokine is primarily involved in the activation of T cells?
  • A. Interleukin-1
  • B. Interleukin-2
  • C. Tumor necrosis factor-alpha
  • D. Interferon-gamma
Q. Which cytokine is primarily involved in the differentiation of naive T cells into Th1 cells?
  • A. IL-4
  • B. IL-12
  • C. IFN-gamma
  • D. TGF-beta
Q. Which cytokine is primarily responsible for activating macrophages during an immune response?
  • A. IL-1
  • B. IL-6
  • C. IFN-gamma
  • D. TNF-alpha
Q. Which cytokine is primarily responsible for the differentiation of naive T cells into Th1 cells?
  • A. IL-4
  • B. IL-12
  • C. IFN-gamma
  • D. TNF-alpha
Q. Which immune cells are primarily involved in the adaptive immune response?
  • A. Neutrophils
  • B. Macrophages
  • C. B and T lymphocytes
  • D. Natural killer cells
Q. Which immune cells are primarily involved in the clearance of intracellular pathogens?
  • A. B cells
  • B. Cytotoxic T cells
  • C. Helper T cells
  • D. Natural killer cells
Q. Which immune cells are primarily involved in the response to helminth infections?
  • A. Neutrophils
  • B. Macrophages
  • C. Eosinophils
  • D. B cells
Q. Which immune cells are primarily responsible for the adaptive immune response?
  • A. Neutrophils
  • B. Macrophages
  • C. B and T lymphocytes
  • D. Natural killer cells
Q. Which immune cells are primarily responsible for the destruction of virus-infected cells?
  • A. B cells
  • B. T helper cells
  • C. Cytotoxic T cells
  • D. Macrophages
Q. Which immune response is primarily involved in fighting viral infections?
  • A. Humoral immunity
  • B. Cell-mediated immunity
  • C. Innate immunity
  • D. Complement system
Q. Which immunoglobulin is primarily found in mucosal areas and is important for mucosal immunity?
  • A. IgG
  • B. IgA
  • C. IgM
  • D. IgE
Q. Which immunoglobulin is primarily involved in the allergic response?
  • A. IgA
  • B. IgD
  • C. IgE
  • D. IgG
Q. Which immunoglobulin is the first to be produced in response to an infection?
  • A. IgA
  • B. IgG
  • C. IgM
  • D. IgE
Q. Which laboratory test is commonly used to diagnose HIV infection?
  • A. Complete blood count
  • B. ELISA test
  • C. PCR test
  • D. Culture test
Q. Which laboratory test is commonly used to diagnose streptococcal pharyngitis?
  • A. Blood culture
  • B. Rapid antigen test
  • C. PCR test
  • D. Urinalysis
Q. Which laboratory test is most commonly used to diagnose streptococcal pharyngitis?
  • A. Blood culture
  • B. Rapid antigen detection test
  • C. PCR assay
  • D. Complete blood count
Q. Which microorganism is known for causing cholera?
  • A. Vibrio cholerae
  • B. Salmonella enterica
  • C. Clostridium botulinum
  • D. Listeria monocytogenes
Q. Which microorganism is primarily responsible for causing tuberculosis?
  • A. Streptococcus pneumoniae
  • B. Mycobacterium tuberculosis
  • C. Escherichia coli
  • D. Staphylococcus aureus
Q. Which of the following diseases is caused by a prion?
  • A. HIV/AIDS
  • B. Mad Cow Disease
  • C. Tuberculosis
  • D. Malaria
Q. Which of the following diseases is caused by a virus?
  • A. Tuberculosis
  • B. HIV/AIDS
  • C. Strep throat
  • D. Malaria
Q. Which of the following disinfectants is effective against spores?
  • A. Alcohol
  • B. Chlorine
  • C. Hydrogen peroxide
  • D. Quaternary ammonium compounds
Q. Which of the following factors does NOT affect the efficacy of a disinfectant?
  • A. Concentration of the disinfectant
  • B. Presence of organic matter
  • C. Temperature
  • D. Color of the disinfectant
Q. Which of the following factors does NOT affect the efficacy of disinfectants?
  • A. Concentration of the disinfectant
  • B. Contact time
  • C. Type of microorganism
  • D. Color of the disinfectant
Q. Which of the following factors does NOT affect the efficacy of disinfection?
  • A. Concentration of the disinfectant
  • B. Contact time
  • C. Temperature
  • D. Color of the disinfectant
Q. Which of the following is a characteristic feature of Gram-negative bacteria?
  • A. Thick peptidoglycan layer
  • B. Outer membrane containing lipopolysaccharides
  • C. Staining purple in Gram stain
  • D. Sensitive to penicillin
Q. Which of the following is a characteristic of a high-level disinfectant?
  • A. Effective against all bacteria
  • B. Effective against spores
  • C. Requires heat for activation
  • D. Can be used on skin
Showing 121 to 150 of 207 (7 Pages)