#1
Which of the following is a Gram-negative bacterium?
Staphylococcus aureus
Escherichia coli
Streptococcus pyogenes
Clostridium difficile
#2
Which microorganism causes tuberculosis?
Streptococcus pneumoniae
Mycobacterium tuberculosis
Pseudomonas aeruginosa
Salmonella typhi
#3
Which of the following is a viral disease?
Tuberculosis
Malaria
Influenza
Cholera
#4
What is the main mode of transmission for the Zika virus?
Mosquito bites
Contaminated water
Sexual contact
Airborne droplets
#5
Which of the following is NOT a characteristic of fungi?
Unicellular
Eukaryotic
Heterotrophic
Photosynthetic
#6
What is the name of the proteinaceous infectious agent that causes abnormal folding of proteins in the brain, leading to neurodegenerative diseases?
Prion
Virus
Bacteriophage
Viroid
#7
Which of the following is NOT a fungal infection?
Athlete's foot
Malaria
Candidiasis
Ringworm
#8
Which of the following microorganisms is responsible for causing dental cavities?
Streptococcus mutans
Helicobacter pylori
Candida albicans
Clostridium botulinum
#9
What is the primary characteristic of a bacteriophage?
It infects bacteria.
It causes plant diseases.
It's a multicellular organism.
It's a eukaryotic organism.
#10
Which of the following is a bacterial sexually transmitted infection (STI)?
Hepatitis B
Gonorrhea
HIV/AIDS
Herpes simplex virus
#11
Which of the following statements about viruses is true?
Viruses are composed of a single cell.
Viruses can replicate outside a host cell.
Viruses can only infect animals.
Viruses lack cellular structure and can't reproduce on their own.
#12
Which of the following is NOT a method for controlling microbial growth?
Sterilization
Pasteurization
Fermentation
Antibiotic therapy
#13
Which of the following is a characteristic of a prion?
It contains genetic material.
It is easily destroyed by standard methods of sterilization.
It lacks nucleic acid.
It can be treated with antibiotics.
#14
Which of the following statements about bacteria is true?
Bacteria are always pathogenic.
Bacteria are all unicellular organisms.
Bacteria are incapable of photosynthesis.
Bacteria can have different shapes such as rods, spheres, or spirals.
#15
Which of the following is NOT a characteristic of viruses?
They can replicate independently.
They can only replicate inside a host cell.
They can cause a wide range of diseases.
They can mutate rapidly.