Question:
Why taking an antibiotic is not effective in the common cold?
Answer:
Antibiotics are effective in curing bacterial and fungal infections (e.g. tuberculosis) but they are ineffective in viral diseases (like the common cold). Antibiotics affect on life processes of bacteria and inhibit their growth. On the other hand, virus is just a piece of DNA (or RNA), not a well-defined life form. Viruses can reproduce inside host cells. They do not use common biochemical pathways as used by other microbes (bacteria, fungi and parasites). That's why antibiotics are ineffective in viral infections. It should be noted that despite this limitation, there are now effective anti-viral drugs, for example, the drugs that keep HIV infection under control.
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.
Give an example of fungal antibiotic.
Q 5.
Name the vector which causes malaria.
Q 6.
What is inflammation ? Write the symptoms of this in human body.
Q 7.
Majority of children in many parts of India are already immune to Hepatitis A by the time they are five years old. Why ?
Q 8.
Which amongst the two diseases : acute or chronic has adverse effect on the health of a person? Explain giving a suitable example.
Q 9.
Differentiate between acute diseases and chronic diseases.
Q 10.
(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 11.
Why Colostrum is good for infants?
Q 12.
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 13.
Define Health? What do you interpret when we say a person is in good health?
Q 14.
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 15.
Why is it important that we think of these categories of infectious agents?
Q 16.
Name the vector that can cause sleeping sickness.
Q 17.
Classify infectious agents into different categories and also mention the diseases caused by them.
Q 18.
State any two conditions essential for being free of disease.
Q 19.
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 20.
Why are we normally advised to take bland and nourishing food when we are sick?
Q 21.
What do signs and symptoms indicate if a person is suffering from any disease ? [SAII -2014]
Q 22.
How can we prevent water borne and vector borne infections ?
Q 23.
What precautions will you take to justify “prevention is better than cure” ?
Q 24.
Becoming exposed to or infected with an infectious microbe (toes not necessarily mean developing noticeable disease. Explain.
Q 25.
Differentiate between communicable and non-communicable diseases. Give one example of each.
Q 26.
What is a balanced diet?
Q 27.
Differentiate between Acute Diseases and Chronic Diseases.
Q 28.
What are congenital diseases? Give two examples of such disease.
Q 29.
Name the protozoan pathogen that causes kala-azar.
Q 30.
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 31.
What do you mean by immune response ? , [SAII – 2014]
Q 32.
What is '
germ theory of disease'? Who proposed it?
Q 33.
Write differences between 'Being Healthy' and 'Disease Free'.
Q 34.
What is the purpose of vaccination ?
Q 35.
(i) Which bacterium causes peptic ulcers ?
(ii) Who discovered the above pathogen for the first time ?
Q 36.
What is an antibiotic ? Give two examples.
Q 37.
Name any four diseases transmitted through vectors.
Q 38.
List any four essential factors that must be taken icare of by an individual for keeping good health.
Q 39.
What is an antibiotic ? Give its one example.
Q 40.
Why do some children fall ill more frequently than others living in the same locality ?
Q 41.
Why are antibiotics not effective for viral disease ?
Q 42.
Name the pathogen causes peptic ulcer.
Q 43.
List the diseases caused by worms?
Q 44.
Define antibiotic? Explain how it is able to control bacterial infections but not viral infections.
Q 45.
What is the alternate name of brain fever? Which vector is responsible for this disease?
Q 46.
What is colostrum? Why is mother's milk strongly advised to newborns?
Q 47.
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 48.
What do you mean by Phagocytosis?
Q 49.
Why do people staying in air-conditioned homes/offices catch cold more often?
Q 50.
Write three differences between Personal Health and Community Health.
