Question:
Name the protozoan pathogen that causes kala-azar.
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.
What is an antibiotic ? Give its one example.
Q 6.
What is a balanced diet?
Q 7.
Name the vector that can cause sleeping sickness.
Q 8.
Many vaccines form the public health programme of childhood immunisation for preventing infectious disease. Name any two such diseases.
Q 9.
Majority of children in many parts of India are already immune to Hepatitis A by the time they are five years old. Why ?
Q 10.
What is an antibiotic ? Give two examples.
Q 11.
(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 12.
(i) How do you define 'disease'? (ii) State and explain in brief the four major factors, which are the causes of disease.
Q 13.
What is '
germ theory of disease'? Who proposed it?
Q 14.
Name the pathogen causes peptic ulcer.
Q 15.
What is the scientific name of roundworm? Where do we find it commonly in the human body? Name the disease caused by it.
Q 16.
Differentiate between acute diseases and chronic diseases.
Q 17.
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 18.
Classify infectious agents into different categories and also mention the diseases caused by them.
Q 19.
Who discovered ‘vaccine’ for the first time ? Name two diseases which can be prevented by using vaccines.
Q 20.
Why does intake of penicillin not affect human cells ? [SAll – 2014]
Q 21.
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 22.
Give examples of fungal diseases.
Q 23.
Name the microbe which causes acne.
Q 24.
How do antibiotics (say Penicillin) work on bacteria but not on human beings?
Q 25.
Why taking an antibiotic is not effective in the common cold?
Q 26.
Why are we advised to take blend and nourishing food when we are sick ?
Q 27.
Which amongst the two diseases : acute or chronic has adverse effect on the health of a person? Explain giving a suitable example.
Q 28.
(i) What is an epidemic disease ?
(ii) Which organ is affected if a person is suffering from jaundice ?
Q 29.
What precautions can you take in your school to reduce the incidence of infectious diseases ?
Q 30.
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 31.
What do you mean by active and passive immunisation ? [SAll – 2015]
Q 32.
“On exposure with an infectious microbe does not necessarily mean developing noticeable disease”. Do you agree ? Explain with reason. If yes, how severe infections occur in our body ?
Q 33.
Explain giving reasons :
(a) Balanced diet is necessary for maintaining healthy body.
(b) Health of an organism depends upon the surrounding environmental conditions.
(c) Our surrounding area should be free of stagnant water.
(d) Social harmony and good economic conditions are necessary for good health.
Q 34.
Becoming exposed to or infected with an infectious microbe (toes not necessarily mean developing noticeable disease. Explain.
Q 35.
Why do some children fall ill more frequently than others living in the same locality ?
Q 36.
Why making anti-viral medicines is harder than making anti-bacterial medicines ?
Q 37.
Give four examples of Chronic diseases.
Q 38.
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 39.
List any two differences between infectious and non-infectious diseases. Write any one example of each disease.
Q 40.
What are Koch's Postulates?
Q 41.
Give an example of fungal antibiotic.
Q 42.
Why are we normally advised to take bland and nourishing food when we are sick?
Q 43.
What is the alternate name of brain fever? Which vector is responsible for this disease?
Q 44.
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 45.
Write three differences between Personal Health and Community Health.
Q 46.
Write differences between 'Being Healthy' and 'Disease Free'.
Q 47.
Name two diseases caused by Protozoans. What are their causal organisms ?
Q 48.
Give four modes of transmission of AIDS.
Q 49.
How can we prevent water borne and vector borne infections ?
Q 50.
What causes Japanese encephalitis ? How it can be prevented ?
