- 1. 1. Cholera is mostly spread by
A) a) air
B) c) water
C) b) soil
D) d) noise
- 2. 2. When bacteria are arranged in chains, they are called?
A) b) staphylococci
B) d) bacilli
C) a) Spirilla
D) c) streptococci
- 3. 3. Viruses are considered to be living organisms because they.
A) c) respond to stimulation
B) d) ingest food materials
C) a) possess transmittable characters
D) b) move from one place to another
- 4. 4. Which of the following is not a protozoan?
A) a) paramecium
B) b) plasmodium
C) c) penicillium
D) d) Amoeba
- 5. 5. Which of the following best describes a culture solution?
A) a) A population of micro-organisms cultivated in a medium
B) c) Solution containing different chemicals
C) b) A population of weeds cultivated in a medium
D) d) Solution containing dead organisms
- 6. 6. Which of the following is a primary benefit of regular physical exercise?
A) a) Increased stress levels
B) c) Decreased energy levels
C) d) Increased risk of chronic diseases
D) b) Improved cardiovascular health
- 7. 7. Which of the following is a common method to prevent the spread of infectious diseases?
A) c) Avoiding vaccinations
B) d) Eating processed foods
C) a) Sharing personal items
D) b) Frequent hand washing
- 8. 8. Which nutrient is essential for building and repairing body tissues?
A) d) Vitamins
B) c) Fats
C) b) Proteins
D) a) Carbohydrates
- 9. 9. Trypanosomiasis is associated with
A) d) cockroach
B) a) mosquitoes
C) b) house fly
D) c) tsetse fly
- 10. 10. Which of following infection is unlikely to respond to antibiotic treatment
A) a) typhoid fever
B) b) ringworm
C) d) tetanus
D) c) measles
- 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) c) Infected male anopheles mosquitoes
D) d) Infected Aides 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) a) antiobiotic
B) b) antibodies
C) d) septic
D) c) antitoxic
- 13. 13. Which of these diseases cannot be spread by an insect?
A) c) trypanosomiasis
B) a) cholera
C) d) Measles
D) b) malaria
- 14. 14. Which of the following statements about poliomyelitis is not correct ?
A) a) is a bacterial disease.
B) b) is capable of paralyzing the limbs
C) c) can be prevented by immunization.
D) d) is an infant disease
- 15. 15. Viruses are pathogen of the following diseases expect
A) c) poliomyelitis
B) b) smallpox
C) d) tuberculosis
D) a) measles
- 16. 16. Which of these is not correct about the tsetse fly and mosquito? They
A) d) inject diseases causing organisms into the blood stream
B) a) harbor protozoa as disease agent.
C) b) possess piecing and sucking mouth part
D) c) have intermediate hosts
- 17. 17. Which of these is a vector of malaria fever?
A) c) female culex mosquito.
B) b) male anopheles mosquito
C) a) female anopheles mosquito.
D) d) male culex mosquito
- 18. 18. Sickle-cell anaemia has persisted in the human race due to
A) b) carriers being more resistant to malaria.
B) d) Wildlife intermediate host.
C) c) Mosquito vectors.
D) a) lack of proper medical for sicklers.
- 19. 19. One of the methods of preventing measles is by
A) d) vaccinating young children
B) c) attacking the secondary host.
C) b) attacking the vector
D) a) sleeping under a mosquito net
- 20. 20. Which of the following parasites is a flatworm?
A) a) plasmodium
B) b) trypanosome
C) d) schistosoma.
D) c) Ascaris
- 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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