- 1. 1. Cholera is mostly spread by
A) c) water
B) a) air
C) b) soil
D) d) noise
- 2. 2. When bacteria are arranged in chains, they are called?
A) c) streptococci
B) a) Spirilla
C) d) bacilli
D) b) staphylococci
- 3. 3. Viruses are considered to be living organisms because they.
A) a) possess transmittable characters
B) d) ingest food materials
C) b) move from one place to another
D) c) respond to stimulation
- 4. 4. Which of the following is not a protozoan?
A) d) Amoeba
B) b) plasmodium
C) c) penicillium
D) a) paramecium
- 5. 5. Which of the following best describes a culture solution?
A) a) A population of micro-organisms cultivated in a medium
B) b) A population of weeds cultivated in a medium
C) c) Solution containing different chemicals
D) d) Solution containing dead organisms
- 6. 6. Which of the following is a primary benefit of regular physical exercise?
A) c) Decreased energy levels
B) d) Increased risk of chronic diseases
C) b) Improved cardiovascular health
D) a) Increased stress levels
- 7. 7. Which of the following is a common method to prevent the spread of infectious diseases?
A) c) Avoiding vaccinations
B) a) Sharing personal items
C) d) Eating processed foods
D) b) Frequent hand washing
- 8. 8. Which nutrient is essential for building and repairing body tissues?
A) d) Vitamins
B) b) Proteins
C) c) Fats
D) a) Carbohydrates
- 9. 9. Trypanosomiasis is associated with
A) c) tsetse fly
B) d) cockroach
C) a) mosquitoes
D) b) house fly
- 10. 10. Which of following infection is unlikely to respond to antibiotic treatment
A) d) tetanus
B) c) measles
C) b) ringworm
D) a) typhoid fever
- 11. 11. Transmission of the malaria parasite is affected through the bite of the
A) a) Male anopheles mosquitoes
B) b) Female anopheles mosquitoes
C) d) Infected Aides mosquitoes
D) c) Infected male anopheles mosquitoes
- 12. 12. The drugs which inhibit the growth of the disease-causing organism and are thus used in the treatment of infection are referred to as
A) d) septic
B) b) antibodies
C) a) antiobiotic
D) c) antitoxic
- 13. 13. Which of these diseases cannot be spread by an insect?
A) a) cholera
B) c) trypanosomiasis
C) d) Measles
D) b) malaria
- 14. 14. Which of the following statements about poliomyelitis is not correct ?
A) c) can be prevented by immunization.
B) d) is an infant disease
C) a) is a bacterial disease.
D) b) is capable of paralyzing the limbs
- 15. 15. Viruses are pathogen of the following diseases expect
A) d) tuberculosis
B) a) measles
C) b) smallpox
D) c) poliomyelitis
- 16. 16. Which of these is not correct about the tsetse fly and mosquito? They
A) b) possess piecing and sucking mouth part
B) d) inject diseases causing organisms into the blood stream
C) c) have intermediate hosts
D) a) harbor protozoa as disease agent.
- 17. 17. Which of these is a vector of malaria fever?
A) c) female culex mosquito.
B) a) female anopheles mosquito.
C) b) male anopheles mosquito
D) d) male culex mosquito
- 18. 18. Sickle-cell anaemia has persisted in the human race due to
A) d) Wildlife intermediate host.
B) b) carriers being more resistant to malaria.
C) a) lack of proper medical for sicklers.
D) c) Mosquito vectors.
- 19. 19. One of the methods of preventing measles is by
A) d) vaccinating young children
B) a) sleeping under a mosquito net
C) b) attacking the vector
D) c) attacking the secondary host.
- 20. 20. Which of the following parasites is a flatworm?
A) c) Ascaris
B) b) trypanosome
C) d) schistosoma.
D) a) plasmodium
- 21. Part 2
ESSAY (THEORY)
Section B
Instructions: Attempt One question in this section.
1. (a) One bacterial parasite of humans.
(b) List four symptoms of malaria.
(c) Mention six methods of controlling malaria in West Africa.
2. (a) What are microorganisms?
(i) List five groups of microorganisms with two examples of each
(ii) Describe ways by which microorganisms can be transmitted
(b) State four factors that can affect the growth of microorganisms.
Section C
Instructions: Attempt One question in this section.
3. (a) State the vectors and the diseases caused by the following organisms (i) plasmodium (ii) trypanosome (iii) vibro-cholerea
(b) List three ways of measuring the growth of bacteria.
4. (a) Mention five sexually transmitted diseases
(i) State the causative organisms of the diseases mentioned above.
(b) What are sexually transmitted infections?
(i) What is the full meaning of the following? HIV, AIDS, STDs, STIs, HPV.
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