NCERT – MCQs on Health and Diseases of Class 12 Biology

Questions

76 Infection of Ascaris occurs due to

1 Contaminated food and water

2 Mosquito bite

3 Tse-tse fly

4 Sand fly

View Answer

Answer: Contaminated food and water

77 Disease caused by Trypanosoma gambiense is

1 Sleeping sickness

2 Kala-azar

3 Diphtheria

4 Dysentery

View Answer

Answer: Sleeping sickness

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78 The symptom of typhoid called intestinal hemorrhage occurs in ____ week of infection.

1 1^st

2 2^nd

3 3^rd

4 4^th

View Answer

Answer: 3rd

79 In AIDs the system which fails is

1 Digestive

2 Repsiratory

3 Defence

4 Sensory

View Answer

Answer: Defence

80 Study of mode of transmission of diseases is called

1 Parasitology

2 epidemiology

3 nosology

4 immunology

View Answer

Answer: epidemiology

81 Deficiency of iodine causes

1 Tetany

2 Cretinism

3 Myxodema

4 Goitre

View Answer

Answer: Goitre

82 AIDS virus HIV first starts destroying

1 Leucocytes

2 Thromoboycytes

3 B-lymphocytes

4 T-lymphocytes

View Answer

Answer: Leucocytes

83 Excessive bleeding from an injury is due to deficiency of

1 Vitamin A

2 Vitamin B

3 Vitamin K

4 Vitamin E

View Answer

Answer: Vitamin K

84 Which one is vehicle borne?

1 Typhoid

2 Cancer

3 Rabies

4 Mumps

View Answer

Answer: Typhoid

85 Bronchogenic carcinoma is cancer of

1 Breast

2 Intestine

3 Lungs

4 Liver

View Answer

Answer: Lungs

86 The cells which act as parasites in the body

1 Schwann cells

2 Hepatocytes

3 Kupffer’s cells

4 Cancer cells

View Answer

Answer: Cancer cells

87 One of the following is mainly infected by HIV (AIIMS)

1 Helper T-lymphocytes

2 Killer T-lymphocytes

3 Cytotoxic T-lymphocytes

4 Memory T-lymphocytes

View Answer

Answer: Helper T-lymphocytes

88 ELISA – a test is helpful for the detection of which of the followings?

1 Leprosy

2 Cancer

3 AIIDS

4 Malaria

View Answer

Answer: AIIDS

89 Cancer of blood is

1 Lymphoma

2 Sarcoma

3 Osteoma

4 Leukemia

View Answer

Answer: Leukemia

90 Pair of viral diseases is

1 Ringwork, AIDS

2 Typhoid, Tuberculosis

3 Dysentery, common cold

4 Common Cold, AIDS

View Answer

Answer: Common Cold, AIDS

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