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Microbiology and Parasitology Questions and Answers | Latest Version | 2025/2026 | Correct & Verified
What is the smallest infectious agent that requires a host cell to reproduce?✔✔Virus
What type of organism is *Escherichia coli*?✔✔Bacterium
What shape are cocci bacteria?✔✔Spherical
What shape are bacilli bacteria?✔✔Rod-shaped
What is the main method of reproduction in bacteria?✔✔Binary fission
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What type of microorganism is responsible for causing athlete's foot?✔✔Fungus
What is the name of the waxy lipid found in the cell wall of *Mycobacterium tuberculosis*?✔✔Mycolic acid
What is the primary method of transmission for malaria?✔✔Mosquito bite
Which parasite causes sleeping sickness?✔✔Trypanosoma brucei
What is the vector for Lyme disease?✔✔Tick
Which protozoan parasite is transmitted through contaminated water and causes severe diarrhea?✔✔Giardia lamblia
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What part of the immune system produces antibodies?✔✔B cells
What is the name of the stain used to differentiate gram-positive and gram-negative bacteria?✔✔Gram stain
What color do gram-positive bacteria appear after gram staining?✔✔Purple
What color do gram-negative bacteria appear after gram staining?✔✔Pink
What is the purpose of a culture medium in microbiology?✔✔To support the growth of microorganisms
Which bacterial structure allows movement?✔✔Flagella
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