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Summary: Science Textbook For Class Ix | 9788174504920 | NCERT
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Read the summary and the most important questions on Science Textbook for Class IX | 9788174504920 | NCERT
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13 WHY DO WE FALL ILL ?
This is a preview. There are 11 more flashcards available for chapter 13
Show more cards here -
Cells are made up of a variety of chemical substances. What are these ?
Proteins, Carbohydrates, Fats or Lipids and so on. -
What are the various specialized activities going on in our body ?
- The heart is beating
- The lungs are breathing
- The kidneys is filtering urine
- The brain is thinking
etc -
What happens if the kidney is not filtering urine ?
Poisonous substances will start accumulating in the body -
What is necessary for cells and tissues to function properly ?
Properdiet and food. -
What do you mean by a disease ?
Disease literally means being uncomfortable. -
State any 2 conditions essentials for good health.
-State if being physically, mentally, socially well.
-Better surroundings or environment. -
State any 2 conditions essential for being free from disease.
-Personal hygiene.
-Clean surroundings and environment. -
Are the answers to the above questions nessarily the same or different? Why?
It is different because he/she may be free of disease but his/hermental , social and economical health may not be good. -
Why do we fall ill?
Any disturbance in the structure or function of any organ or a part of a body may be caused due to attack of pathogens [virus, bacteria], lack of nutrition or balanced diet and lack of public health services. -
What is a Chronic disease?
Diseases that is long-lasting and takes more time for treatment.
Ex : AIDS
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