Biology

Why Do We Fall Ill?

Question:

Majority of children in many parts of India are already immune to Hepatitis A by the time they are five years old. Why ?

Answer:

This is because since beginning they are exposed to the virus through water.

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Questions and Answers

Why Do We Fall Ill?

Q 1.

Name the diseases that can spread through housefly.
Answer

Q 2.

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

Answer

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…………

Answer

Q 4.

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

Answer

Q 5.

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

Q 6.

Give two examples of bacterial antibiotics.
Answer

Q 7.

What are antibodies?
Answer

Q 8.

What are the basic principles involved in medical treatment for diseases?
Answer

Q 9.

Why are kids and elderly people more vulnerable to cold/flu?
Answer

Q 10.

What is an antibiotic ? Give its one example.

Answer

Q 11.

State any two conditions essential for good health. [SAII-2014]

Answer

Q 12.

State any two conditions essential for good health.
Answer

Q 13.

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

Q 14.

List the diseases caused by worms?
Answer

Q 15.

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

Q 16.

Differentiate between allergy and autoimmune diseases.
Answer

Q 17.

Name any four diseases transmitted through vectors.

Answer

Q 18.

State two principles of treatment of a disease.

Answer

Q 19.

Under which of the following conditions is a person most likely to fall sick ?
(a) When she is recovering from malaria.
(b) When she has recovered from malaria and is taking care of someone suffering from
chickenpox.
(c) When she is on a four-day fast after recovering from malaria and is taking care of someone suffering from chickenpox. Why ?

Answer

Q 20.

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 ?

Answer

Q 21.

Becoming exposed to or infected with an infectious microbe (toes not necessarily mean developing noticeable disease. Explain.

Answer

Q 22.

Why are antibiotics not effective for viral disease ?

Answer

Q 23.

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

Answer

Q 24.

Give three examples of bacterial diseases.
Answer

Q 25.

Name the pathogen causes peptic ulcer.
Answer

Q 26.

How do antibiotics (say Penicillin) work on bacteria but not on human beings?
Answer

Q 27.

Define antibiotic? Explain how it is able to control bacterial infections but not viral infections.
Answer

Q 28.

What is antigen?
Answer

Q 29.

What is colostrum? Why is mother's milk strongly advised to newborns?
Answer

Q 30.

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

Answer

Q 31.

Name two diseases caused by Protozoans. What are their causal organisms ?

Answer

Q 32.

What is an antibiotic ? Give two examples.

Answer

Q 33.

What do signs and symptoms indicate if a person is suffering from any disease ? [SAII -2014]

Answer

Q 34.

(i) What is an epidemic disease ?
(ii) Which organ is affected if a person is suffering from jaundice ?

Answer

Q 35.

What causes Japanese encephalitis ? How it can be prevented ?

Answer

Q 36.

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

Answer

Q 37.

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.

Answer

Q 38.

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

Answer

Q 39.

Why is immune system essential for our health ?

Answer

Q 40.

Why does intake of penicillin not affect human cells ? [SAll – 2014]

Answer

Q 41.

State giving reasons whether the following statements are correct or not:

  1.  Our surrounding area should be free from stagnant water.
  2. Staying clean is not necessary as long as you eat a balanced diet.
  3.  Social equality and harmony are necessary for good health.
Answer

Q 42.

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

Q 43.

How do we identify a disease?
Answer

Q 44.

Give examples of Acute diseases.
Answer

Q 45.

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

Answer

Q 46.

List any four essential factors that must be taken icare of by an individual for keeping good health.

Answer

Q 47.

Which amongst the two diseases : acute or chronic has adverse effect on the health of a person? Explain giving a suitable example.

Answer

Q 48.

How can we prevent water borne and vector borne infections ?

Answer

Q 49.

Why are we normally advised, to take bland and nourishing food when we are sick ? [SAII – 2011, 2013]

Answer

Q 50.

Differentiate between acute diseases and chronic diseases.

Answer