Question:
Becoming exposed to or infected with an infectious microbe (toes not necessarily mean developing noticeable disease. Explain.
Answer:
Because of strong immune system our body is normally fighting off microbes. We have cells which are specialised to kill the pathogenic microbes. These cells are active when infecting microbes enter the body and if they are successful in removing the pathogen, we remain disease-free. So even if we are exposed to infectious microbes, it is not necessary that we suffer from diseases.
Why Do We Fall Ill?
Q 1.
Give two examples for each of the following :
(a) Acute diseases
(b) Chronic diseases
(c) Infectious diseases
(d) Non-infectious diseases.
Q 2.
Give two examples of bacterial antibiotics.
Q 3.
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 4.
Differentiate between communicable and non-communicable diseases. Give one example of each.
Q 5.
Name a disease which was earlier considered to be chronic but now can be treated in short duration?
Q 6.
Why Colostrum is good for infants?
Q 7.
Which amongst the two diseases : acute or chronic has adverse effect on the health of a person? Explain giving a suitable example.
Q 8.
Differentiate between acute diseases and chronic diseases.
Q 9.
(i) Why a person suffering from AIDS cannot fight even small infections ?
(ii) In a slum area, many people are suffering from malaria. Mention any two unhygienic conditions that must be prevailing in that locality.
(iii) Why female Anopheles mosquito feeds on human blood ? [SAII – 2014]
Q 10.
Name the vector which causes malaria.
Q 11.
Majority of children in many parts of India are already immune to Hepatitis A by the time they are five years old. Why ?
Q 12.
What is inflammation ? Write the symptoms of this in human body.
Q 13.
In which of the following case do you think the long-term effects on your health are likely to be most unpleasant? a. if you get jaundice, b. if you get lice, c. if you get acne. Why?
Q 14.
Give an example of fungal antibiotic.
Q 15.
What do signs and symptoms indicate if a person is suffering from any disease ? [SAII -2014]
Q 16.
What is an antibiotic ? Give its one example.
Q 17.
Classify infectious agents into different categories and also mention the diseases caused by them.
Q 18.
Define Health? What do you interpret when we say a person is in good health?
Q 19.
Differentiate between Acute Diseases and Chronic Diseases.
Q 20.
Why are we normally advised to take bland and nourishing food when we are sick?
Q 21.
Name the vector that can cause sleeping sickness.
Q 22.
Becoming exposed to or infected with an infectious microbe (toes not necessarily mean developing noticeable disease. Explain.
Q 23.
Why is it important that we think of these categories of infectious agents?
Q 24.
List any four essential factors that must be taken icare of by an individual for keeping good health.
Q 25.
How can we prevent water borne and vector borne infections ?
Q 26.
What is a disease ? How many types of diseases have you studied ? Give examples.
Q 27.
What do you mean by immune response ? , [SAII – 2014]
Q 28.
What are congenital diseases? Give two examples of such disease.
Q 29.
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 30.
Write differences between 'Being Healthy' and 'Disease Free'.
Q 31.
(i) Which bacterium causes peptic ulcers ?
(ii) Who discovered the above pathogen for the first time ?
Q 32.
Name any four diseases transmitted through vectors.
Q 33.
What precautions will you take to justify “prevention is better than cure” ?
Q 34.
Why do some children fall ill more frequently than others living in the same locality ?
Q 35.
Name the protozoan pathogen that causes kala-azar.
Q 36.
Give four modes of transmission of AIDS.
Q 37.
(i) What is an epidemic disease ?
(ii) Which organ is affected if a person is suffering from jaundice ?
Q 38.
Under which of the following conditions is a person most likely to fall sick ?
(a) When she is recovering from malaria.
(b) When she has recovered from malaria and is taking care of someone suffering from
chickenpox.
(c) When she is on a four-day fast after recovering from malaria and is taking care of someone suffering from chickenpox. Why ?
Q 39.
What are the different means by which infectious diseases are spread ?
Q 40.
State giving reasons whether the following statements are correct or not:
- Our surrounding area should be free from stagnant water.
- Staying clean is not necessary as long as you eat a balanced diet.
- Social equality and harmony are necessary for good health.
Q 41.
State any two conditions essential for being free of disease.
Q 42.
Are the answers to the above questions (Q2 and Q5) and necessarily the same or different? Why?
Q 43.
A hefty boy of 12 years often picks fights with others. Do you think he is in good health? If so, then explain your answer.
Q 44.
Write few common signs and symptoms of a disease if a brain is affected.
Q 45.
List any two differences between infectious and non-infectious diseases. Write any one example of each disease.
Q 46.
List the diseases caused by viruses?
Q 47.
Name the pathogen causes peptic ulcer.
Q 48.
A doctor/nurse/health-worker is exposed to more sick people than others in the community. Find out how she/he avoids getting sick herself/himself.
Q 49.
What is colostrum? Why is mother's milk strongly advised to newborns?
Q 50.
What do you mean by Phagocytosis?
