Question:
(i) What are the various ways to prevent the diseases ?
(ii) What is immunisation ?
Answer:
(i) We can prevent disease in two ways :
(a) General ways: By preventing exposure to infectious microbes.
- By providing safe drinking water and public hygiene.
- By providing proper and balanced diet, (any two)
(b) Specific ways : By immunisation.
(ii)Immunisation : The process of developing immune power in the body to fight against the diseases is called immunisation. In the process of immunisation, a vaccine is introduced into the body doe to which the immune power of the body improves.
Why Do We Fall Ill?
Q 1.
Give two examples for each of the following :
(a) Acute diseases
(b) Chronic diseases
(c) Infectious diseases
(d) Non-infectious diseases.
Q 2.
What is inflammation ? Write the symptoms of this in human body.
Q 3.
Name a disease which was earlier considered to be chronic but now can be treated in short duration?
Q 4.
Give two examples of bacterial antibiotics.
Q 5.
Name the vector that can cause sleeping sickness.
Q 6.
Name the pathogen causes peptic ulcer.
Q 7.
Majority of children in many parts of India are already immune to Hepatitis A by the time they are five years old. Why ?
Q 8.
What is a balanced diet?
Q 9.
What is '
germ theory of disease'? Who proposed it?
Q 10.
Give examples of fungal diseases.
Q 11.
Give an example of fungal antibiotic.
Q 12.
Why Colostrum is good for infants?
Q 13.
What do signs and symptoms indicate if a person is suffering from any disease ? [SAII -2014]
Q 14.
What is an antibiotic ? Give its one example.
Q 15.
(i) Why a person suffering from AIDS cannot fight even small infections ?
(ii) In a slum area, many people are suffering from malaria. Mention any two unhygienic conditions that must be prevailing in that locality.
(iii) Why female Anopheles mosquito feeds on human blood ? [SAII – 2014]
Q 16.
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 ?
Q 17.
What is a disease ? How many types of diseases have you studied ? Give examples.
Q 18.
(i) How do you define 'disease'? (ii) State and explain in brief the four major factors, which are the causes of disease.
Q 19.
How do antibiotics (say Penicillin) work on bacteria but not on human beings?
Q 20.
Why are we normally advised to take bland and nourishing food when we are sick?
Q 21.
What is immunisation?
Q 22.
Why are we advised to take blend and nourishing food when we are sick ?
Q 23.
Differentiate between acute diseases and chronic diseases.
Q 24.
What do you mean by active and passive immunisation ? [SAll – 2015]
Q 25.
Classify infectious agents into different categories and also mention the diseases caused by them.
Q 26.
Why is immune system essential for our health ?
Q 27.
State giving reasons whether the following statements are correct or not:
- Our surrounding area should be free from stagnant water.
- Staying clean is not necessary as long as you eat a balanced diet.
- Social equality and harmony are necessary for good health.
Q 28.
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?
Q 29.
Name the microbe which causes acne.
Q 30.
What is the scientific name of roundworm? Where do we find it commonly in the human body? Name the disease caused by it.
Q 31.
Name the vector which causes malaria.
Q 32.
What precautions can you take in your school to reduce the incidence of infectious diseases?
Q 33.
What are the immunisation programmes available at the nearest health centre in your locality? Which of these diseases are the major health problems in your area?
Q 34.
Write differences between 'Being Healthy' and 'Disease Free'.
Q 35.
State any two conditions essential for being free of disease.
Q 36.
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 ?
Q 37.
A baby is not able to tell her / his caretakers that she / he is sick. What would help us to find out:
(a) that the baby is sick ?
(b) what is the sickness ?
Q 38.
Who discovered ‘vaccine’ for the first time ? Name two diseases which can be prevented by using vaccines.
Q 39.
Why does intake of penicillin not affect human cells ? [SAll – 2014]
Q 40.
List the diseases caused by viruses?
Q 41.
Name the protozoan pathogen that causes kala-azar.
Q 42.
Name the vectors which can cause rabies.
Q 43.
Many vaccines form the public health programme of childhood immunisation for preventing infectious disease. Name any two such diseases.
Q 44.
List any four essential factors that must be taken icare of by an individual for keeping good health.
Q 45.
(i) What is an epidemic disease ?
(ii) Which organ is affected if a person is suffering from jaundice ?
Q 46.
What causes Japanese encephalitis ? How it can be prevented ?
Q 47.
State any two conditions essential for good health. [SAII-2014]
Q 48.
Why are we normally advised, to take bland and nourishing food when we are sick ? [SAII – 2011, 2013]
Q 49.
What precautions can you take in your school to reduce the incidence of infectious diseases ?
Q 50.
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
