Biology

Why Do We Fall Ill?

Question:

What do you mean by disease symptoms ? Explain giving two examples.

Answer:

When the functioning or the appearance of one-or more systems of the body will change for the worse, it gives certain abnormal signs of the disease. These visual changes in human beings are called symptoms. Symptoms give indication of the presence of a particular disease.
Examples :

  1.  Lesions on the skin are the symptoms of chickenpox.
  2. Cough is the symptom of lung infection.

 

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Why Do We Fall Ill?

Q 1.

Name the diseases that can spread through housefly.

Q 2.

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 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.

Name the pathogen causes peptic ulcer.

Q 5.

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

Q 6.

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

Q 7.

Name the vector that can cause sleeping sickness.

Q 8.

What is antigen?

Q 9.

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

Q 10.

Why Colostrum is good for infants?

Q 11.

(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 12.

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

Q 13.

Why are antibiotics not effective for viral disease ?

Q 14.

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

Q 15.

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

Q 16.

What is an antibiotic ? Give its one example.

Q 17.

How many times did you fall ill in the last one year ? What were the illnesses ?  (a) Think of one change you could make in your habits in order to avoid any/most of the above illnesses.
(b) Think of one change you would wish for in your surroundings in order  to avoid any/most of the above illnesses.

Q 18.

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 19.

What do you mean by disease symptoms ? Explain giving two examples.

Q 20.

What are acquired 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.

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

Q 24.

What do you mean by Phagocytosis?

Q 25.

Differentiate between allergy and autoimmune diseases.

Q 26.

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

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.

What is inflammation ? Write the symptoms of this in human body.

Q 29.

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

Q 30.

Why is immune system essential for our health ?

Q 31.

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

Q 32.

You have suffered from chickenpox, when you were in class three. Why will you not suffer from it again ? [SAII -2014]

Q 33.

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

Q 34.

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

Q 35.

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

Q 36.

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

Q 37.

Write three differences between Personal Health and Community Health.

Q 38.

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

Q 39.

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

Q 40.

Differentiate between acute diseases and chronic diseases.

Q 41.

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

Q 42.

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 43.

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

Q 44.

What is a balanced diet?

Q 45.

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 46.

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 47.

List the diseases caused by worms?

Q 48.

Give an example of fungal antibiotic.

Q 49.

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

Q 50.

Name the vector which causes malaria.