Sunday, November 13, 2016

CBSE Class 9 - Science - CH 13 - Why Do We Fall iLL? (Important Differences)

Why Do We Fall iLL?

 (Important Differences)

CBSE Class 9 - Science - CH 13 - Why Do We Fall iLL? (Important Differences)




Q1: Write three differences between Personal Health and Community Health.

Answer:


Personal Health         Community Health
1. It is a state of physical, mental and social well being. 1. It refers to maintenance, improvement of public health or environmental health.

2. It focuses on individual's health.                    2. Its focus is on community health. 
3. Objectives are achieved by individual by observing personal and domestic hygiene.3. Objectives are fulfilled by providing safe water, medical facilities, proper sewage disposal etc. 



Q2: What are the important differences between symptoms and signs?

Answer: Please see answer in the previous post Q12.



Q3: Write differences between 'Being Healthy' and 'Disease Free'.

Answer:




Being Healthy         Disease Free
 1. Being healthy refers to a state of physical, mental and social well being. 1. Being disease free means the state of absence of any body discomfort.

2.  A person can be unhealthy even in the absence of disease.                    2. Even in absence of discomfort, a person can be disease free.
3. It depends upon the person and one’s environment discomfort (including society).3. It depends on individual alone.



Q4: What is the difference between  Acute and Chronic diseases?

Answer: Please see answer in the previous post Q18.


Q5: What is the difference between congenital diseases and acquired disease?


Answer:

Congenital Diseases         Acquired Diseases
1. These diseases are present right from birth.1. These diseases are caught by a person after birth.
2. In general, these diseases are inheritable i.e. pass on from
one generation to another.
                     
2. Generally non-inheritable i.e. do not pass on from
one generation to another.

3. Caused either due to genetic disorders or
environmental factors during embryo (pre-birth) stage.

3. Diseases are caused by pathogens/infectious agents or infected humans.
4. A few examples are colour blindness, hemophilia, sickle cell anemia.

3. A few examples are: tuberculosis, malaria, scurvy etc.




Q6: What is the difference between  Infectious disease and non-infectious diseases?

Answer: Please see answer in the previous post Q24.


Q7: 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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