Science & Technology › Health & Diseases – UPSC Prelims PYQs

87 questions · 1995–2025 · answers as per the UPSC key · page 2 of 2

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Consider the following conditions of sick human body

  1. Swollen lymph nodes
  2. Sweating at night
  3. Loss of memory
  4. Loss of weight

Which of these are the symptoms of AIDS?

(a) 1 and 2
(b) 2, 3 and 4
(c) 1, 2 and 3
(d) 1, 2, 3 and 4
Show answer
Answer: (d) 1, 2, 3 and 4

Foot-and-mouth disease in animals, a current epidemic in some parts of the world, is caused by

(a) Bacterium
(b) Fungus
(c) Protozoan
(d) Virus
Show answer
Answer: (d) Virus

Which one of the following statements is correct?

(a) Prions are the smallest free-living cells
(b) The cell wall of Mycoplasmas is made up of amino sugars
(c) Viroids consist of a single-stranded RNA molecule
(d) Rickettsia’s lack cell wall
Show answer
Answer: (c) Viroids consist of a single-stranded RNA molecule

Assertion (A): Human diet should compulsorily contain Glycerine, Serine and Tyrosine.

Reason (R): Essential amino acids cannot be synthesised in the human body.

(a) Both A and R are individually true and R is the correct explanation of A
(b) Both A and R are individually true but R is not a correct explanation of A
(c) A is true but R is false
(d) A is false but R is true
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Answer: (d) A is false but R is true

“Athlete’s Foot” is a disease caused by

(a) Bacteria
(b) Fungus
(c) Protozoan
(d) Nematode
Show answer
Answer: (b) Fungus

In the eye donation, which part of the eye is transplanted from the donor?

(a) Cornea
(b) Lens
(c) Retina
(d) The whole eye
Show answer
Answer: (a) Cornea

“Metastasis” is the process by which

(a) cells divide rapidly under the influence of drugs
(b) cancer cells spread through the blood or lymphatic system to other sites or organs
(c) the chromosomes in cell nuclei are attached to the spindle before moving to the anaphase poles
(d) cancer cells are successfully inhibited to divide any further
Show answer
Answer: (b) cancer cells spread through the blood or lymphatic system to other sites or organs

The stones formed in human kidney consist mostly of

(a) calcium oxalate
(b) sodium acetate
(c) magnesium sulphate
(d) calcium
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Answer: (a) calcium oxalate

Most of the explosions in mines occur due to the mixing of

(a) hydrogen with oxygen
(b) oxygen with acetylene
(c) methane with air
(d) carbon dioxide with ethane
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Answer: (c) methane with air

Soft drinks such as colas contain significant quantities of

(a) caffeine
(b) nicotine
(c) tannin
(d) renin
Show answer
Answer: (a) caffeine

Match List I (Diseases) with List II (Types of disease) and select the correct answer using the codes given below the Lists:

List I I. Haemophilia II. Diabetes III. Diabetes IV. Ringworm

List II A) Deficiency disease B) Genetic disease C) Hormonal disorder D) Fungal infection

Codes:

(a) I-B, II-C, III-D, IV-A
(b) I-B, II-C, III-A, IV-D
(c) I-C, II-B, III-A, IV-D
(d) I-C, II-B, III-D, IV-A
Show answer
Answer: (b) I-B, II-C, III-A, IV-D

The blood glucose level is commonly expressed as

(a) mm of Hg
(b) milligram per decilitre
(c) parts per million
(d) grams per litre
Show answer
Answer: (b) milligram per decilitre

In eye donation,

which one of the following parts of donor’s eye is utilised?

(a) Iris
(b) Lens
(c) Cornea
(d) Retina
Show answer
Answer: (c) Cornea

Match List I (Drugs / Chemicals) with List II (Their uses) and select the correct answer using the codes given below the Lists:

List I I. Atropine II. Ether III. Nitro-glycerine IV. Pyrethrin

List II A) Local anaesthesia B) Heart trouble C) Dilation of pupil D) Mosquito control

Codes:

(a) I-A, II-C, III-B, IV-D
(b) I-A, II-C, III-D, IV-B
(c) I-C, II-A, III-D, IV-B
(d) I-C, II-A, III-B, IV-D
Show answer
Answer: (d) I-C, II-A, III-B, IV-D

Lathyrism is caused by excessive consumption of

(a) Kesari dal
(b) Mustard oil
(c) Polished rice
(d) Mushrooms
Show answer
Answer: (a) Kesari dal

Barium in a suitable form is administered to patients before an X-ray examination of the stomach, because

(a) barium allows X-rays to pass through the stomach on account of its transparency to X-rays
(b) barium compound, like magnesium sulphate helps in cleaning the stomach before X-ray examination
(c) barium is a good absorber of X-rays and this helps the stomach to appear clearly in contrast with the other regions in the picture
(d) barium salts are white in colour and this helps the stomach to appear clearly in contrast with other regions in the picture
Show answer
Answer: (c) barium is a good absorber of X-rays and this helps the stomach to appear clearly in contrast with the other regions in the picture

Cobalt-60 is commonly used in radiation therapy because it emits

(a) alpha rays
(b) beta rays
(c) gamma rays
(d) X-rays
Show answer
Answer: (c) gamma rays

Consumption of fish is considered to be healthy when compared to flesh of other animals because fish contains

(a) polyunsaturated fatty acids
(b) saturated fatty acids
(c) essential vitamins
(d) more carbohydrates and proteins
Show answer
Answer: (a) polyunsaturated fatty acids

Match List I with List II

and select the correct answer using the codes given below the lists:

List I (Disease) I. Malaria II. Poliomyelitis III. Tuberculosis IV. Ringworm

List II (Organism) A. Fungi B. Bacteria C. Virus D. Protozoan

Codes:

(a) I-D, II-C, III-B, IV-A
(b) I-D, II-C, III-A, IV-B
(c) I-C, II-D, III-A, IV-B
(d) I-C, II-D, III-B, IV-A
Show answer
Answer: (a) I-D, II-C, III-B, IV-A

Ergotism is due to consumption of

(a) contaminated grains
(b) rotting vegetables
(c) contaminated water
(d) stale cooked food
Show answer
Answer: (a) contaminated grains

The major chemical compound found in human kidney stones is

(a) Uric acid
(b) Calcium carbonate
(c) Calcium oxalate
(d) Calcium sulphate
Show answer
Answer: (c) Calcium oxalate

A major health mission carried in 1996 was

(a) war against leprosy
(b) small-pox eradication
(c) pulse polio immunization
(d) popularisation of oral rehydration therapy
Show answer
Answer: (c) pulse polio immunization

What is the average fat content of buffalo milk?

(a) 7.2%
(b) 4.5%
(c) 9.0%
(d) 10.0%
Show answer
Answer: (a) 7.2%

The major component of honey is

(a) glucose
(b) sucrose
(c) maltose
(d) fructose
Show answer
Answer: (d) fructose

Recommended daily intake of proteins for a moderately active woman is

(a) 30 g
(b) 37 g
(c) 40 g
(d) 46 g
Show answer
Answer: (d) 46 g

Match List I with List II

and select the correct answer by using the codes given below the lists:

List I I. Malaria II. Filaria III. Encephalitis IV. Leukaemia

List II A) Bone marrow B) Brain C) Muscle D) Lymph node E) Blood cells

(a) I-E, II-C, III-B, IV-A
(b) I-E, II-D, III-B, IV-A
(c) I-D, II-C, III-E, IV-A
(d) I-E, II-D, III-A, IV-B
Show answer
Answer: (b) I-E, II-D, III-B, IV-A

According to the World Health Organisation, the disease which causes the death of the largest number of people today is

(a) AIDS
(b) Tuberculosis
(c) Malaria
(d) Ebola
Show answer
Answer: (b) Tuberculosis

The nutritional deficiency condition that needs to be given top priority for remedial action in India today is

(a) Scurvy
(b) Rickets
(c) Xerophthalmia
(d) Pellagra
Show answer
Answer: (c) Xerophthalmia

Which of the following are associated with diabetes mellitus, a common disease in adults? I. Higher sugar level in blood II. Lower sugar level in blood III. Lower insulin level in blood IV. Higher insulin level in blood

Select the correct answer using the codes given below:

(a) I and IV
(b) I and II
(c) II and III
(d) I and III
Show answer
Answer: (d) I and III

Consider the following statements: AIDS is transmitted — I. By sexual intercourse. II. By blood transfusion. III. By mosquitoes and other blood-sucking insects. IV. Across the placenta. Of these statements —

(a) I, II and III are correct
(b) I, II and IV are correct
(c) I, III and IV are correct
(d) I and III are correct
Show answer
Answer: (b) I, II and IV are correct

Which of the following would lead to ‘malnutrition’? I. Overnutrition II. Undernutrition III. Imbalanced nutrition

Select the correct answer using the codes given below:

(a) II alone
(b) II and III
(c) I and III
(d) I, II and III
Show answer
Answer: (d) I, II and III

People drinking water from a shallow hand pump are likely to suffer from all of the following diseases, except

(a) Cholera
(b) Typhoid
(c) Jaundice
(d) Fluorosis
Show answer
Answer: (d) Fluorosis

Besides proteins and carbohydrates, other elements of nutritional value found in milk include

(a) calcium, potassium and iron
(b) calcium and potassium
(c) potassium and iron
(d) calcium and iron
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Answer: (b) calcium and potassium

The offending substance in the liquor tragedies leading to blindness, etc. is

(a) ethyl alcohol
(b) amyl alcohol
(c) benzyl alcohol
(d) methyl alcohol
Show answer
Answer: (d) methyl alcohol

Which one of the following sets is correctly matched?

(a) Diphtheria, Pneumonia and Leprosy: Hereditary
(b) AIDS, Syphilis and Gonorrhoea: Bacterial
(c) Colour blindness, Haemophilia and Sickle cell anaemia: Sex linked
(d) Polio, Japanese B encephalitis and plague: Viral
Show answer
Answer: No single answer
Note: None of the options (a–d) is correct

Which one of the following antimicrobial drugs is suitable for treatment of both tuberculosis and leprosy?

(a) Isoniazid
(b) p-aminosalicylic acid
(c) Streptomycin
(d) Rifampicin
Show answer
Answer: (d) Rifampicin

“It begins as a single cell and grows into a merciless disease that claims millions of lives year after year. But scientists are steadily unlocking its mysteries, and the fight against it may now have reached a dramatic turning point. New discoveries promise better therapies and hope in the war against ...” The disease referred to in the above quotation is

(a) Cancer
(b) AIDS
(c) Tuberculosis
(d) Alzheimer’s disease
Show answer
Answer: (a) Cancer