Biology

Why Do We Fall Ill?

Question:

Differentiate between allergy and autoimmune diseases.

Answer:


Allergy Autoimmune Disease
1. An allergy is a disease in which the immune system makes an inflammatory response to a harmless antigen. 1. It is disease when the immune system fails to recognize the body’s own molecules as self and attacks the body’s cells as though they were foreign invaders.
2. Mild or severe. Not not life threatening but require life long precautions. 2. Life long treatment to reduce damage to body.
3. e.g. itchy eyes, sneezing, and skin rashes, gluten allergy
3. e.g. arthritis, diabetes
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Why Do We Fall Ill?

Q 1.

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

Q 2.

What is antigen?

Q 3.

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 4.

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

Q 5.

Name the pathogen causes peptic ulcer.

Q 6.

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

Q 7.

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

Q 8.

Name the diseases that can spread through housefly.

Q 9.

Write three differences between Personal Health and Community Health.

Q 10.

(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 11.

What is an antibiotic ? Give its one example.

Q 12.

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

Q 13.

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

Q 14.

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

Q 15.

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

Q 16.

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 17.

Why are antibiotics not effective for viral disease ?

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.

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

Q 20.

Give three examples of bacterial diseases.

Q 21.

Name the protozoan pathogen that causes kala-azar.

Q 22.

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

Q 23.

Name the vector that can cause sleeping sickness.

Q 24.

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 25.

What are antibodies?

Q 26.

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

Q 27.

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

Q 28.

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

Q 29.

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

Q 30.

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

Q 31.

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

Q 32.

Give four examples of Chronic diseases.

Q 33.

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

Q 34.

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

Q 35.

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

Q 36.

What is an antibiotic ? Give two examples.

Q 37.

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 38.

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 39.

Give any four factors necessary for a healthy person.

Q 40.

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

Q 41.

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

Q 42.

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 43.

List the diseases caused by worms?

Q 44.

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

Q 45.

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

Q 46.

Explain why antibiotics are more effective in curing bacterial diseases than viral diseases.

Q 47.

Give two examples of bacterial antibiotics.

Q 48.

Give an example of fungal antibiotic.

Q 49.

What is immunisation?

Q 50.

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