Microbiology & Immunology

Download Q&A

Microbiology & Immunology focuses on the study of microorganisms and the immune system, explaining how microbes interact with living organisms and how the body defends itself against infections. This category is designed for Class 11–12 students, NEET aspirants, and undergraduate learners to build strong conceptual and applied understanding.

In this section, you will study:

  • Classification and characteristics of microorganisms

  • Structure and life cycles of bacteria, viruses, fungi, and protozoa

  • Beneficial and harmful roles of microorganisms

  • Principles of innate and acquired immunity

  • Cells and organs of the immune system

  • Antigens, antibodies, and immune responses

  • Vaccination and immunological memory

  • Basics of immune disorders and hypersensitivity

  • NCERT-based explanations, diagrams, MCQs, and exam-oriented questions

The content is structured to develop conceptual clarity, enhance diagram and mechanism-based understanding, and help students perform confidently in school examinations, NEET, and undergraduate assessments.

Build a strong foundation in microbiology and immunology to understand disease, immunity, and the biological basis of health and protection.

Q. What is the primary purpose of vaccination?
  • A. To treat existing infections
  • B. To induce passive immunity
  • C. To stimulate an adaptive immune response
  • D. To enhance innate immunity
Q. What is the primary role of phagocytes in the immune response?
  • A. To produce antibodies
  • B. To present antigens to T cells
  • C. To engulf and destroy pathogens
  • D. To release histamines
Q. What is the primary role of T helper cells in the immune response?
  • A. Directly kill infected cells
  • B. Produce antibodies
  • C. Activate B cells and cytotoxic T cells
  • D. Phagocytose pathogens
Q. What is the primary target of the hepatitis B vaccine?
  • A. Hepatitis A virus
  • B. Hepatitis B virus
  • C. Hepatitis C virus
  • D. HIV
Q. What is the primary vector for the transmission of malaria?
  • A. Aedes mosquito
  • B. Culex mosquito
  • C. Anopheles mosquito
  • D. Tsetse fly
Q. What is the recommended contact time for a 10% bleach solution to effectively disinfect surfaces?
  • A. 1 minute
  • B. 5 minutes
  • C. 10 minutes
  • D. 15 minutes
Q. What is the role of a biological indicator in sterilization processes?
  • A. To measure temperature
  • B. To confirm the presence of microorganisms
  • C. To verify the effectiveness of sterilization
  • D. To disinfect surfaces
Q. What is the role of a biological indicator in sterilization?
  • A. To measure temperature
  • B. To confirm the presence of microorganisms
  • C. To verify the effectiveness of the sterilization process
  • D. To indicate the type of sterilization method used
Q. What is the role of alcohol in disinfection?
  • A. To kill spores
  • B. To denature proteins and disrupt membranes
  • C. To oxidize cellular components
  • D. To inhibit nucleic acid synthesis
Q. What is the role of antibodies in the immune response?
  • A. Directly kill pathogens
  • B. Neutralize toxins and pathogens
  • C. Activate complement system
  • D. All of the above
Q. What is the role of antibodies in the immune system?
  • A. To directly kill pathogens
  • B. To neutralize toxins
  • C. To enhance phagocytosis
  • D. All of the above
Q. What is the role of antigen-presenting cells (APCs) in the immune response?
  • A. To produce antibodies
  • B. To present antigens to T cells
  • C. To directly kill pathogens
  • D. To secrete cytokines
Q. What is the role of autoclaving in sterilization?
  • A. It uses chemical agents to kill microorganisms.
  • B. It uses high pressure and steam to achieve sterilization.
  • C. It relies on ultraviolet light to disinfect surfaces.
  • D. It is a method of physical disinfection only.
Q. What is the role of cytokines in the immune response?
  • A. To directly kill pathogens
  • B. To signal and regulate immune cell activity
  • C. To form antibodies
  • D. To enhance phagocytosis
Q. What is the role of dendritic cells in the immune response?
  • A. To produce antibodies
  • B. To present antigens to T cells
  • C. To kill infected cells
  • D. To secrete cytokines
Q. What is the role of dendritic cells in the immune system?
  • A. Produce antibodies
  • B. Present antigens to T cells
  • C. Kill pathogens directly
  • D. Secrete cytokines
Q. What is the role of helper T cells in the immune response?
  • A. Directly kill infected cells
  • B. Stimulate B cells and cytotoxic T cells
  • C. Produce antibodies
  • D. Engulf pathogens
Q. What is the role of surfactants in disinfection?
  • A. Increase the pH of the solution
  • B. Enhance the penetration of disinfectants
  • C. Neutralize microbial toxins
  • D. Stabilize the disinfectant solution
Q. What is the role of T helper cells in the immune response?
  • A. To kill infected cells
  • B. To produce antibodies
  • C. To activate B cells and cytotoxic T cells
  • D. To phagocytize pathogens
Q. What is the role of the microbiome in human health?
  • A. It causes diseases.
  • B. It has no significant role.
  • C. It aids in digestion and immune function.
  • D. It only affects skin health.
Q. What is the typical antibody concentration in serum after a secondary immune response compared to a primary response?
  • A. Lower
  • B. Similar
  • C. Higher
  • D. No antibodies produced
Q. What laboratory technique is commonly used to identify bacterial species based on their cell wall characteristics?
  • A. PCR
  • B. Gram staining
  • C. ELISA
  • D. Western blotting
Q. What laboratory test is commonly used to diagnose streptococcal pharyngitis?
  • A. Blood culture
  • B. Rapid antigen test
  • C. PCR test
  • D. Urinalysis
Q. What role do T helper cells play in the immune response?
  • A. Directly kill infected cells
  • B. Help activate B cells and cytotoxic T cells
  • C. Produce antibodies
  • D. Engulf and digest pathogens
Q. What type of cells are primarily involved in the cell-mediated immune response?
  • A. B cells
  • B. Cytotoxic T cells
  • C. Antigen-presenting cells
  • D. Plasma cells
Q. What type of immune response is primarily involved in fighting viral infections?
  • A. Humoral response
  • B. Cell-mediated response
  • C. Innate response
  • D. Inflammatory response
Q. What type of immunity is conferred by maternal antibodies transferred to a newborn?
  • A. Active immunity
  • B. Passive immunity
  • C. Innate immunity
  • D. Cell-mediated immunity
Q. What type of immunity is provided by vaccination?
  • A. Innate immunity
  • B. Passive immunity
  • C. Active immunity
  • D. Cell-mediated immunity
Q. What type of pathogen is Candida albicans?
  • A. Bacterium
  • B. Virus
  • C. Fungus
  • D. Protozoan
Q. What type of vaccine is the MMR vaccine?
  • A. Inactivated
  • B. Live attenuated
  • C. Subunit
  • D. Toxoid
Showing 91 to 120 of 207 (7 Pages)
Soulshift Feedback ×

On a scale of 0–10, how likely are you to recommend The Soulshift Academy?

Not likely Very likely