Page 2 - HA1

8 Which of the following is NOT an air borne disease?
(a) Common cold
(b) Malaria
(c) Pneumonia
(d) Tuberculosis
9 Microbes are immediate cause of _______ disease.
(a) Infectious
(b) Non-infectious
(c) Acute
(d) Chronic.
10 An organism which harbours a pathogen and may pass it on to another person to
cause a disease is known as
(a) Host
(b) Vector
(c) Parasite
(d) Predator

Subjective

1. Which bacterium causes peptic ulcer? Who discovered the pathogen 1 E
first time?
2. Classify the diseases as infectious and non-infectious. 1 E
(a) AIDS(b) Tuberculosis (c) Cholera
(d) High blood pressure(e) Cancer(f) Pneumonia
3. Name the causal organism of diarrhoea. Write the symptoms of it. 1 Av
4. (a) Name any two microorganisms from which antibiotic could be 3 Av
extracted.
(b) How does antibiotics help to kill the bacteria?
(c) Explain why antibiotics do not work against viruses.
5. What is inflammation? Write its common effects. 3 D
6. (a) The signs and symptoms of a disease depend on the tissue or 3 D
organ, which are targeted by the microbes. Explain with examples.
(b) What are vectors? Name a vector of malarial parasites.