Biology

Why Do We Fall Ill?

Question:

Many vaccines form the public health programme of childhood immunisation for preventing infectious disease. Name any two such diseases.

Answer:

(i) Vaccine against measles.
(ii) BCG vaccine against T.B.

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Why Do We Fall Ill?

Q 1.

Name the diseases that can spread through housefly.

Q 2.

Name any two diseases which are caused due to unprotected sexual intercourse.

Q 3.

Name the target organs for the following diseases :
(a) Hepatitis targets…………
(b) Fits or unconsciousness targets…………
(c) Pneumonia targets…………
(d) Fungal disease targets…………

Q 4.

Common cold spreads faster and is difficult to control. Give reason. [SAII -2014]

Q 5.

What are infectious agents? What are the different infectious agents?

Q 6.

What are antibodies?

Q 7.

Why taking an antibiotic is not effective in the common cold?

Q 8.

What precautions will you take to justify “prevention is better than cure” ?

Q 9.

What is an antibiotic ? Give its one example.

Q 10.

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]

Q 11.

State two principles of treatment of a disease.

Q 12.

What do you mean by active and passive immunisation ? [SAll – 2015]

Q 13.

Write three differences between Personal Health and Community Health.

Q 14.

State any two conditions essential for being free of disease.

Q 15.

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 16.

Why do some children fall ill more frequently than others living in the same locality ?

Q 17.

State any two conditions essential for good health.

Q 18.

Are the answers to the above questions (Q2 and Q5) and necessarily the same or different? Why?

Q 19.

Why is it not necessary to give Hepatitis A vaccine to children?

Q 20.

Why it is advisable to breast feed the baby for first few several weeks?

Q 21.

Name any four diseases transmitted through vectors.

Q 22.

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 23.

(a) What is immunisation ?
(b) Define immunity and vaccination.
(c) Define vaccine. .
(d) What type of diseases can be prevented through vaccination ? [SAII -2013]

Q 24.

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.

Q 25.

Classify infectious agents into different categories and also mention the diseases caused by them.

Q 26.

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

Q 27.

Why are antibiotics not effective for viral disease ?

Q 28.

What are the different means by which infectious diseases are spread ?

Q 29.

State any two conditions essential for being free of disease.

Q 30.

(i) How do you define 'disease'? (ii) State and explain in brief the four major factors, which are the causes of disease.

Q 31.

Give examples of Acute diseases.

Q 32.

What are congenital diseases? Give two examples of such disease.

Q 33.

Write few common signs and symptoms of a disease if a brain is affected.

Q 34.

Give examples of fungal diseases.

Q 35.

List the diseases caused by worms?

Q 36.

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 37.

Why do people staying in air-conditioned homes/offices catch cold more often?

Q 38.

Write differences between 'Being Healthy' and 'Disease Free'.

Q 39.

Name any two groups of microorganisms from which antibiotics could be extracted.

Q 40.

Give two examples for each of the following :
(a) Acute diseases
(b) Chronic diseases
(c) Infectious diseases
(d) Non-infectious diseases.

Q 41.

(i) Which bacterium causes peptic ulcers ?
(ii) Who discovered the above pathogen for the first time ?

Q 42.

Give the modes of transmission of each of the following diseases :
(i) Syphilis (ii) Tuberculosis (iii) Jaundice (iv) Japanese encephalitis [SAII -2012]

Q 43.

Why is immune system essential for our health ?

Q 44.

Define Health? What do you interpret when we say a person is in good health?

Q 45.

Is there any difference between 'being healthy' and 'disease free'?

Q 46.

How do we identify a disease?

Q 47.

What is the difference between symptoms and signs of a disease?

Q 48.

In which of the following case do you think the long-term effects on your health are likely to be most unpleasant? a. if you get jaundice, b. if you get lice, c. if you get acne. Why?

Q 49.

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 50.

What are Koch's Postulates?