Biology

Why Do We Fall Ill?

Question:

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

Answer:

(i) Sleeping sickness caused by Trypanosoma, Malaria by Plasmodium.
(ii) Kala-azar caused by Leishmania.

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Why Do We Fall Ill?

Q 1.

What do you mean by immune response ? , [SAII – 2014]

Q 2.

Name the pathogen causes peptic ulcer.

Q 3.

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

Q 4.

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

Q 5.

What is antigen?

Q 6.

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 7.

(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 8.

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

Q 9.

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

Q 10.

Name the diseases that can spread through housefly.

Q 11.

Write three differences between Personal Health and Community Health.

Q 12.

What is an antibiotic ? Give its one example.

Q 13.

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

Q 14.

Give three examples of bacterial diseases.

Q 15.

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

Q 16.

Name the vector that can cause sleeping sickness.

Q 17.

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

Q 18.

(i) What are the various ways to prevent the diseases ?
(ii) What is immunisation ?

Q 19.

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

Q 20.

What is a disease ? How many types of diseases have you studied ? Give examples.

Q 21.

Why are antibiotics not effective for viral disease ?

Q 22.

Give four examples of Chronic diseases.

Q 23.

What is 'germ theory of disease'? Who proposed it?

Q 24.

Name the protozoan pathogen that causes kala-azar.

Q 25.

A doctor/nurse/health-worker is exposed to more sick people than others in the community. Find out how she/he avoids getting sick herself/himself.

Q 26.

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

Q 27.

In which of the following case do you think the long-term effects on your health are likely to be most unpleasant ?

  •  if you get jaundice ?
  •  if you get lice ?
  •  if you get acne. Why ?

 

Q 28.

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

Q 29.

List the diseases caused by worms?

Q 30.

Give two examples of bacterial antibiotics.

Q 31.

What are antibodies?

Q 32.

(a) What are epidemic and endemic diseases? (b) Which organ is affected if a person is suffering from jaundice?

Q 33.

Why are we advised to take blend and nourishing food when we are sick ?

Q 34.

Give any four factors necessary for a healthy person.

Q 35.

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 36.

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

Q 37.

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

Q 38.

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

Q 39.

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 40.

What is the scientific name of roundworm? Where do we find it commonly in the human body? Name the disease caused by it.

Q 41.

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

Q 42.

Give an example of fungal antibiotic.

Q 43.

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

Q 44.

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

Q 45.

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

Q 46.

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

Q 47.

Differentiate between allergy and autoimmune diseases.

Q 48.

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

Q 49.

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

Q 50.

What is an antibiotic ? Give two examples.