Class 8 Health and Diseases exercise question answer
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Q.1.Distinguish between- Infectious and noninfectious diseases.
Ans:
|
Infectious diseases |
Noninfectious diseases |
|
The
diseases which can be transmitted from one patient to other person are called
infectious disease. |
The diseases which can
not be transmitted from one patient to other person are called infectious
disease. |
|
contaminated
air, water, food or vectors (insects and other animals) are spread the
infectious disease. |
Non-infectious disease are not
transmitted through any medium. |
|
E.g.:
Typhoid, Cholera, Dysentery, Hepatitis, Tuberculosis. |
E.g.: Cancer, Heart
Disease, Diabetes. |
2. Identify the odd term.
a. Malaria, hepatitis, elephantiasis, dengue.
Ans:
Hepatitis
b. Plague, AIDS, cholera, T.B.
Ans:
AIDS
Q.3. Answer in one to two sentences.
a. Which are various media of spreading the infectious diseases?
Ans:
Infectious diseases spread through contaminated air, water, food or vectors (insects and other animals).
b. Give the names of five non-infectious diseases other than given in the lesson.
Ans:
- Artharitis,
- Migrane
- Kidney failure.
- Mental stress
- Hyper tension
- Blood pressure
- Asthama
c. Which are the main reasons of diabetes and heart diseases?
Ans:
- Main reasons of diabetes are Heredity, Obesity, Lack of physical exercise, Mental stress.
- Main reason of Heart diseases are Smoking, alcoholism, diabetes, hypertension, obesity, lack of physical exercise, heredity, mental stress, anger, anxiety.
Q.4.What can be achieved / can be prevented?
a. Drinking boiled and filtered water.
Ans:
Achieved
b. Avoiding smoking and alcoholism.
Ans:
Prevented
c. Regular balanced diet and exercise.
Ans: Achieved
d. Proper checking of blood before blood donation.
Ans:
Achieved
Q.5. Read the passage and answer the questions. Master ‘X’ is a 3 year old child. He is living with his family in a slum. Public toilet is present near his house. His father is drunkard. His mother does not know the importance of balanced diet.
a. Master ‘X’ can suffer from which different possible diseases in above conditions?
Ans:
Master ‘x’ may get infected with water borne diseases like typhoid, cholera,
dysentery and jaundice. Also, chances of dengue fever and malaria in slums is
higher due to water logging.
b. How will you help him and his family in this situation
Ans:
Master x and his family should be made aware of the disease that may infect them if they live in unhygienic conditions. They need to know the outcomes of diseases like dengue, cholera, typhoid etc. and how these are transmitted. His father should be made aware of the problems of alcoholism. Insist his mother to follow a balance diet for a healthy family.
c. Which disease can occur to the father of master ‘X’?
Ans:
father of master ‘x’ may get cancer due to extreme alcoholism. It can be
prevented, if the avoids alcohol.
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6. Give the preventive measures of following diseases.
a.
Dengue.
Ans:
- Mosquitoes lay the eggs in water-logged places and thereby their population increases Mosquitoes lay the eggs in water-logged
- places and thereby their population increases Thus, water should not be allowed to be retained in tires, broken glass or nay other materials.
- Also, cover your hands, especially lower limbs which prevent mosquitoes to spread dengue.
These
are the preventive measures of Dengue.
b.
Cancer.
Ans:
- Cancer can be prevented by leading a healthy lifestyle. Avoid consumption of tobacco, gutkha, cigarettes, alcohol etc.
- Consume food with high fiber content (fruits and leafy vegetables)
- Avoid excessive consumption of junk food like pizza, burger etc.
These
are the preventive measures of cancer
c. AIDS
Ans:
- Avoid usage of used needles and Syringes.
- In barber shop ask the barber to used new blade for shaving.
- If required, only use blood from blood bank and make sure it is disease free.
These
are the preventive measures of cancer AIDS
Q.7. Explain the importance.
1)
Balanced diet.
Ans:
Balanced diet help to maintain or improve overall health and provides the body with essential nutrients such as micronutrients, macronutrients, adequate calories etc.
b)Physical exercise / Yogasanas.
Ans:
The
Importance of physical exercise or yogasanas is to bring in physical or mental
disciplines and to achieve a peaceful mind. It helps to manage stress and
anxiety in this modern world.
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Q.8. Make a list.
a)Viral diseases.
Ans:
AIDS, Hepatitis, Dengue, Chickenpox, Polio, measles etc.
b) Bacterial diseases.
Ans:
Tuberculosis, typhoid, cholera, Plague etc.
c) Diseases spread through insects.
Ans:
Malaria, elephantiasis, dengue, sleeping, sickness etc.
d) Hereditary diseases.
Ans:
Down’s syndrome, Huntington’s disease, Haemophilia, thalassemia etc.
Q.9. Write the information on modern diagnostics and treatments of cancer.
Ans:
1. Various techniques like CT scan, MRI scan, mammography, biopsy are used in diagnosis of cancer.
2. In case of treatment, along with conventional methods like chemotherapy, radiation therapy and surgery, modern techniques like robotic and laparoscopic surgery are also followed
3. Also, controlled diet prevents some types of cancer.
Q.10. Enlist the names and composition of the medicines present at your home.
Ans:
Paracetamol
Payrigesic
Presmox
Orasep gel
Eye
drop
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