Question:
Why is it important that we think of these categories of infectious agents?
Answer:
Members of each one of these groups – viruses, bacteria, and so on – have many biological characteristics in common. these categories are important factors in deciding what kind of treatment to use. It implies many important life processes are similar in the bacteria group but are not shared with the virus group. As a result, drugs that block one of these life processes in one member of the group is likely to be effective against many other members of the group. But the same drug will not work against a microbe belonging to a different group.
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.
Name a disease which was earlier considered to be chronic but now can be treated in short duration?
Q 4.
Which amongst the two diseases : acute or chronic has adverse effect on the health of a person? Explain giving a suitable example.
Q 5.
What is inflammation ? Write the symptoms of this in human body.
Q 6.
Give an example of fungal antibiotic.
Q 7.
Name the vector which causes malaria.
Q 8.
Majority of children in many parts of India are already immune to Hepatitis A by the time they are five years old. Why ?
Q 9.
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 10.
Why Colostrum is good for infants?
Q 11.
Differentiate between acute diseases and chronic diseases.
Q 12.
(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 13.
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 14.
Classify infectious agents into different categories and also mention the diseases caused by them.
Q 15.
Becoming exposed to or infected with an infectious microbe (toes not necessarily mean developing noticeable disease. Explain.
Q 16.
Define Health? What do you interpret when we say a person is in good health?
Q 17.
State any two conditions essential for being free of disease.
Q 18.
Why is it important that we think of these categories of infectious agents?
Q 19.
Name the vector that can cause sleeping sickness.
Q 20.
What do signs and symptoms indicate if a person is suffering from any disease ? [SAII -2014]
Q 21.
Differentiate between communicable and non-communicable diseases. Give one example of each.
Q 22.
A baby is not able to tell her/his caretakers that she/he is sick. What would help us to find out (a) that the baby is sick? (b) what is the sickness?
Q 23.
Why are we normally advised to take bland and nourishing food when we are sick?
Q 24.
How can we prevent water borne and vector borne infections ?
Q 25.
A baby is not able to tell her / his caretakers that she / he is sick. What would help us to find out:
(a) that the baby is sick ?
(b) what is the sickness ?
Q 26.
What do you mean by immune response ? , [SAII – 2014]
Q 27.
What precautions will you take to justify “prevention is better than cure” ?
Q 28.
What is a balanced diet?
Q 29.
Differentiate between Acute Diseases and Chronic Diseases.
Q 30.
What are congenital diseases? Give two examples of such disease.
Q 31.
Name the protozoan pathogen that causes kala-azar.
Q 32.
What do you mean by Phagocytosis?
Q 33.
What is the purpose of vaccination ?
Q 34.
(i) Which bacterium causes peptic ulcers ?
(ii) Who discovered the above pathogen for the first time ?
Q 35.
List any four essential factors that must be taken icare of by an individual for keeping good health.
Q 36.
What is an antibiotic ? Give its one example.
Q 37.
What is '
germ theory of disease'? Who proposed it?
Q 38.
What is colostrum? Why is mother's milk strongly advised to newborns?
Q 39.
Why do people staying in air-conditioned homes/offices catch cold more often?
Q 40.
Write differences between 'Being Healthy' and 'Disease Free'.
Q 41.
Many vaccines form the public health programme of childhood immunisation for preventing infectious disease. Name any two such diseases.
Q 42.
Name any two diseases which are caused due to unprotected sexual intercourse.
Q 43.
What is an antibiotic ? Give two examples.
Q 44.
Name any four diseases transmitted through vectors.
Q 45.
(i) What is an epidemic disease ?
(ii) Which organ is affected if a person is suffering from jaundice ?
Q 46.
Why are we normally advised, to take bland and nourishing food when we are sick ? [SAII – 2011, 2013]
Q 47.
Under which of the following conditions are you most likely to fall sick ?
(a) when you are taking examinations.
(b) when you have travelled by bus and train for two days.
(c) when your friend is suffering from measles. Why ?
Q 48.
(a) What is immunisation ?
(b) Define immunity and vaccination.
(c) Define vaccine. .
(d) What type of diseases can be prevented through vaccination ? [SAII -2013]
Q 49.
Why is AIDS considered to be a ‘Syndrome’ and not a disease ?
Q 50.
Who discovered ‘vaccine’ for the first time ? Name two diseases which can be prevented by using vaccines.
