Results
#1. Hepatitis B is primarily spread through:
Correct Answer: Blood and certain body fluids
Explanation: Hepatitis B spreads through exposure to infected blood and certain body fluids.
#2. How do most bacteria reproduce?
Correct Answer: Binary fission
Explanation: Binary fission is a simple process where one bacterial cell divides into two identical cells.
#3. How do viruses compare to bacteria?
Correct Answer: Viruses are smaller than bacteria.
Explanation: Viruses are much smaller than bacteria and require a living host cell to reproduce.
#4. Which hepatitis virus is the most common chronic bloodborne infection?
Correct Answer: Hepatitis C
Explanation: Hepatitis C is a leading cause of chronic bloodborne infection and can result in long-term liver disease.
#5. Which part of a cell controls its activities and contains its genetic material?
Correct Answer: Nucleus
Explanation: The nucleus serves as the control center of the cell and stores DNA.
#6. Which type of bacteria is classified as Gram-positive?
Correct Answer: Staphylococcus
Explanation: Staphylococcus bacteria are Gram-positive and are commonly encountered in healthcare settings.
#7. Approximately what percentage of bacteria are considered harmless to humans?
Correct Answer: 95%
Explanation: Most bacteria are harmless or even beneficial. Only a small percentage are capable of causing disease.
#8. What term is used for microorganisms that can cause disease?
Correct Answer: Pathogens
Explanation: Pathogens are microorganisms capable of causing infection or illness.
#9. Anaerobic bacteria are able to survive in environments without:
Correct Answer: Oxygen
Explanation: Anaerobic bacteria grow and survive in places where oxygen is absent.
#10. Which of the following is caused by a fungus?
Correct Answer: Athlete’s foot
Explanation: Athlete’s foot is a common fungal infection that affects the skin, especially between the toes.