What do you mean by immune response ? , [SAII – 2014]
Immune response is the reaction of the body’s immune system to foreign cells or substances that cause disease or may even be potentially dangerous. This response involves the production
of cells (lymphocytes) and chemicals (antibodies) designed to defend the body against the pathogen.
Name the target organs for the following diseases :
(a) Hepatitis targets…………
(b) Fits or unconsciousness targets…………
(c) Pneumonia targets…………
(d) Fungal disease targets…………
The signs and symptoms of a disease will depend on the tissue or organ which the microbe targets Justify the statement with two examples. [SAll – 2014]
Under which of the following conditions are you most likely to fall sick ?
(a) when you are taking examinations.
(b) when you have travelled by bus and train for two days.
(c) when your friend is suffering from measles. Why ?
List any three reasons why you would think that you are sick and ought to see a doctor. If only one of these symptoms were present, would you still go to the doctor ? Why or why not ?
Why do some children fall ill more frequently than others living in the same locality ?
Give two examples for each of the following :
(a) Acute diseases
(b) Chronic diseases
(c) Infectious diseases
(d) Non-infectious diseases.
(a) What is immunisation ?
(b) Define immunity and vaccination.
(c) Define vaccine. .
(d) What type of diseases can be prevented through vaccination ? [SAII -2013]
Conduct a survey in your neighbourhood to find out what the three most common diseases are. Suggest three steps that could be taken by your local authorities to bring down the incidence of these diseases.
Classify infectious agents into different categories and also mention the diseases caused by them.
Classify the following diseases as infectious or non-infectious :
(a) AIDS (b) Tuberculosis
(c) Cholera (d) High blood pressure
(e) Heart disease (f) Pneumonia
(g) Cancer
Differentiate between communicable and non-communicable diseases. Give one example of each.
Many vaccines form the public health programme of childhood immunisation for preventing infectious disease. Name any two such diseases.
(i) Which bacterium causes peptic ulcers ?
(ii) Who discovered the above pathogen for the first time ?
Give the modes of transmission of each of the following diseases :
(i) Syphilis (ii) Tuberculosis (iii) Jaundice (iv) Japanese encephalitis [SAII -2012]
You have suffered from chickenpox, when you were in class three. Why will you not suffer from it again ? [SAII -2014]