why do we fall ill

Only available on StudyMode
  • Download(s): 74
  • Published: January 27, 2014
Read full document
Text Preview
Class IX

Chapter 13 – Why Do We Fall Ill

Science

Question 1:
State any two conditions essential for good health.
Answer:
The twoconditions essential for good health are:
(i) An individual must have better health facilities and more professionals to deal with health problems.
(ii) All basic necessary conditions to prevent diseases must be present. For example, proper garbage collection and disposal, clearing of drains, supply of healthy drinking water, etc.
Question 2:
State any two conditions essential for being free of disease. Answer:
The twoconditions essential for being free of diseases are:
(i) Personal hygiene and cleanliness are necessary to stay away from diseases. (ii) Individuals should take a balanced diet that contains carbohydrates, fats, proteins, vitamins, fibres, and proper quantity of water.

Question 3:
Are the answers to the above questions necessarily the same or different? Why? Answer:
No. The answers to the above questions may not necessarily be the same. This is because a disease free state is not the same as being healthy. Good health is the ability of an individual to realise his or her full potential. Individuals can have poor health without having any identifiable disease. Also, health is related to society and community, whereas having a disease is about an individual sick person. Hence, the conditions for good health and for being disease free can be same or even different.

Page 1 of 7

Class IX

Chapter 13 – Why Do We Fall Ill

Science

Question 1:
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?
Answer:
Symptoms such as a headache, stomach pain, nausea, vomiting, fever, etc., make us feel that we are sick and must visit a doctor. These symptoms basically indicate that there might be a disease, but we cannot predict the kind of disease. Therefore, it becomes necessary to visit a doctor so that the disease can be identified and can be treated with proper medication.

However, if only one of these symptoms is present, we usually do not visit a doctor. This is because such symptoms do not have much effect on our general health and ability to work. However, if a person is experiencing these symptoms for quite sometime, then he needs to visit a doctor for proper treatment. Question 2:

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?
Answer:
Jaundice is a disease that can cause long-term effects on our health. It is a chronic disease that lasts for a long period of time. Jaundice does not spread rapidly, but it develops slowly over a period of time.

Page 2 of 7

Class IX

Chapter 13 – Why Do We Fall Ill

Science

Question 1:
Why are we normally advised to take bland and nourishing food when we are sick? Answer:
We are normally advised to consume bland and nourishing food when we are sick so that we can get the nutrients and energy quickly to fight off the foreign diseasecausing agents. Question 2:
What are the different means by which infectious diseases are spread? Answer:
Diseases can be spread through various means such as air, water, sexual contact, blood, and vector.
(i) Certain disease-causing micro-organisms are expelled in air by coughing, sneezing, talking, etc. These micro-organisms can travel through dust particles or water droplets in air to reach other people. For example, tuberculosis, pneumonia, etc. spread through air.

(ii) Sometimes causal micro-organisms get mixed with drinking water and spread water borne diseases. Cholera for example is water borne disease. (iii) Sexual act between two people can lead to the transfer of diseases such as syphilis, gonorrhoea, AIDS, etc.

(iv) Certain diseases such as AIDS can spread via blood to blood contact during blood...
tracking img