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This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.

1.

In which of the following case do you think the long-term effects on your health are likely to be most unpleasant ? `**` If you get jaundice, `**` If you get lice, `**` If you get acne.

Answer» In case of attack of jaundice, there would be long-term effects on my body. It is so because jaundice is a disease in which liver is affected. It takes more time to recover from this disease by talcing proper treatment under supervision of a doctor. On the other hand, lice can be removed easily with short treatment and so is the acne. Both these do not produce long-term effects on the body.
2.

Which of the following can make you ill if you come in contact with an infected person?A. High blood pressureB. Genetic abnormalitiesC. SneezingD. Blood cancer

Answer» Correct Answer - C
Pneumonia is a viral disease.
3.

DTP-Hib vaccine is given to check which disease (s) ? At which age, this vaccine is given?

Answer» DTP-Hib vaccine is given to all infants of `1^(1//2),2^(1//2) and 3^(1//2)` months age to check diptheria, tetanus and pertusis (whooping cough) and Haemophilus influenzae type B.
4.

Name two diseases caused by protozoans. What are their causal organisms?

Answer» `{:("Name","Causative organsim"),((i)"Malaria","Plasmodium"),((ii)"Kala-azar","Leishmania"):}`
5.

Name any two general ways of prevention of infectious diseases.

Answer» Eradication of vectors.
6.

Give two general ways of prevention of infectious diseases.

Answer» (i) Sanitation (ii) Eradication of vectors. For detail,
7.

Name any two ways through which infectious diseases spread?

Answer» (i) Through water (ii) Through sexual contact.
8.

Mention two diseases that spread through sexual contact.

Answer» Syphilis and AIDS.
9.

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.

Answer» A doctor/nurse/health worker is exposed to more sick people in the community. He avoids getting sick by :
(I) keeping place of work sterilized by using phenyl etc.
(ii) keeping equipments, that are regularly in use, sterilized.
(iii) washing hands with soap thoroughly after serious examination of patients.
(iv) wearing clean clothes.
10.

Name two domestic animals which transmit rabies to human beings.

Answer» Dog and cat.
11.

Why is it possible to effectively immunise the patient against rabies even after rabies infection ?

Answer» Incubation period of the disease is generally 1-3 months. This long period makes possible for a rabies vaccination, after a bite, to develop immunity and prevent the appearance of a disease in the patient.
12.

Jaundice occurs due to which of the following diaseases : (a) Hepatitis (b) Tuberculosis (c) Rabies.

Answer» (a) Hepatitis
13.

Name two modes of transmission of AIDS.

Answer» (i) Sexual contact with affected person, and (ii) Through transfusion of infected blood.
14.

Which vaccine is commonly given to children to induce immunity in them against tuberculosis ?

Answer» Answer:- BCG
15.

Write down the modes of transmission of tuberculosis.

Answer» Tuberculosis is transmitted directly through sputum of infected person by sneezing, coughing or spitting and indirectly also (air borne disease).
16.

Name two symptoms of tuberculosis of lungs.

Answer» (i) Fever and cough (ii) Blood-containing sputum.
17.

Name the toxin released by bacterium which causes tuberculosis.

Answer» Answer:- Tuberculin.
18.

Give one examples of protozoan diseases.

Answer» Answer:- Malaria.
19.

Name the scientist who first discovered penicillin antibiotic. Can you name any other known antibiotic ?

Answer» Sir Alexander Flemming.
Other known antibiotic is streptomycin.
20.

(a) Name the disease that causes acidity-related pain and bleeing in the stomach and duodenum of affected humans. (b) Who recently proved that this disease does not occur because of lifestyle reasons but is caused by a bacterium. (c) Name the causative bacterium of this disease.

Answer» (a) Peptic ulcers (b) Barry Marshall and Robin Warren (c) Helicobacter pylori (bacterium).
21.

What is an antibiotic? Give two examples.

Answer» Antibiotic is a chemical secreted by microorganisms (bacteria or fungi) that kills or hinders the growth of some kinds of bacteria. Examples. Pencillin and steptomycin.
22.

Which antibiotic was first discovered by Alexander Flemming ? Give name of one more antibiotic recently being used.

Answer» Penicillin , streptomycin.
23.

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?

Answer» It is so because measles is an infectious disease.
24.

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?

Answer» (a) Symptoms that help us to find that baby is sick, are
(i) Continuous crying and restlessness of the child,
(ii) improper intake of food and body temperature,
(iii) loose motions.
(b) Baby is suffering from diarrhoea.
25.

Given any four factors necessary for a healthy person.

Answer» (i) Clean surroundings.
(ii) Availability of adequate and nutritious food.
(iii) Availability of clean drinking water.
(iv) Social equality and harmony.
26.

Which one of the following is not a bacterial disease?A. CholeraB. TuberculosisC. AnthraxD. Influenza

Answer» Correct Answer - D
Influenza is caused by a virus.
27.

Who first conceived the idea of vaccination ?

Answer» Edward Jenner.
28.

Knowledge of which disease helped Dr. Edward Jenner to develop idea of vaccination to prevent small pox?

Answer» Cowpox disease.
29.

What is the constituent of isabgol ? Isabgol is advised with curd to the patient to provide relief against which disease ?

Answer» Husk of Plantogo ovata seeds , Diarrhoea. The husk of Plantago ovata seeds, Diarrhoea.
30.

What precautions can you take in your school to reduce the incidence of infectious diseases?

Answer» Following precautions can be taken in the school to reduce the incidence of infectious diseases :
(i) providing clean drinking water,
(ii) educating students about causes of infectious diseases,
(iii) vaccination of students against common infectious diseases from time to time,
(iv) proper samtatton or clean environment m school and tts surroundings to eradicate vectors of infectious diseases, and
(v) by not allowing the affected students to attend the classes till they recover from infectious diseases.
31.

What is the mode of transmission of diarrhoeal diseases ?

Answer» Generally through contaminated food, water, drinks etc.
32.

Name any one causative organism of diarrhoeal diseases.

Answer» Staphylococcus.
33.

Give any two ways by which diarrhoea can be controlled.

Answer» (i) Use of antidiarrhoeal antibiotics.
(ii) Saline drip to patient or alternatively oral rehydration solution (ORS) periodically can be given.
34.

Name any three causative organisms which cause diarrhoea.

Answer» Staphylococcus, Clostridium, Escherichia coli.
35.

Name atleast one congenital disease which occurs (a) due to gene or chromosomal mutation (b) due to the effect of environmental factors.

Answer» (a) Colour blindness
(b) Cleft palate.
36.

Name two common vaccines given to children below 5 year of age.

Answer» (i) Polio vaccine
(ii) DTP vaccine for preventing diptheria, Tetanus and whooping cough.
37.

What are contagious diseases ? Give one example.

Answer» The diseases which are spread by actual contact between infected person and healthy persons are called contagious diseases. Example - Chicken pox.
38.

What do the physcians do on the basis of symptoms ?

Answer» Physicians (l) look for the signs of a particular disease,
(ii) get laboratory tests done on the patients to further confirm the disease.
39.

What do you mean by disease symptoms? Explain giving two examples?

Answer» Symptoms of the disease are the manifestations or evidences of the presence of disease(s). These indicate that there is some abnormality in the body.
Examples. (i) Cough and breathlessness are symptoms of lung infection.
(ii) Yellowness of sclera (white portion) of the eye and skin are symptoms of jaundice.
40.

Why is immune system essential for our health?

Answer» Immune system of our body is a kind of defence mechanism of fight against pathogenic microorganisms. It has cells which are specialized to kill infecting microbes and, thus, keeps our body healthy.
41.

Expand the terms ORS and BCG.

Answer» ORS-Oral Rehydration solution, BCG-Bacillus Calmette Guerin.
42.

Name the causative organism of typhoid disease. Name the common vector which spreads the pathogens of typhoid from the faeces to the food and water.

Answer» Salmonella typhi , Houseflies.
43.

Which animal generally transmits rabies to humans? What is mode of transmission of this disease?

Answer» A dog , The virus enters the human body with the saliva of an infected animal, generally by the bite of the dog. From the site of entry, the virus then travels via peripheral nerves to the spinal cord and the brain.
44.

(a) Name one disease caused by Anopheles, Culex and Aedes spp. of mosquitoes. (b) Name the organism that transmits the following diseases : (i) Diarrhoea (ii) Bubonic plague

Answer» (a) Anopheles - Malaria.
Culex - Filariasis.
Aedes - Dengue.
(b) (i) Diarrhoea is transmitted by houseflies. (ii) Bubonic plague is transmitted by rat flea.
45.

Name any one larvivorous fish which is a natural predator of mosquito larvae.

Answer» Gambusia fish.
46.

Female Anopheles mosquito feeds on human blood. What is the food of male Anopheles mosquito.

Answer» Male Anophales mosquito feeds on plant juices.
47.

Why is female anopheles mosquito vector of malaria and not male Anopheles mosquito ?

Answer» Male Anopheles mosquitoes feed on plant juices and hence are not carriers of malarial disease. Female Anopheles mosquito is the primary host of malarial parasite, Plasmodium. It reproduces in the salivary glands. When the female bites to human being, it transmits saliva containing malarial parasites into the human blood. The latter multiply and then cause malaria.
48.

Which one of the following disease is not transmited by mosquito?A. Brain feverB. MalariaC. TyphoidD. Dengue

Answer» Correct Answer - C
Typhoid causing bacteria are transmitted from faeces to food and water by house flies
49.

Name any two viral diseases which commonly occur in infants/children.

Answer» (i) Diarrhoea (ii) Poliomyelitis or polio.
50.

Name any two diseases which occur due to mosquito bites.

Answer» (i) Malaria (ii) Japanese encephalitis.