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Free Download as PDF of the detailed solutions for class 12 Biology from NCERT or CBSE text book as per exam pattern, to help you in day to day learning. We provide all important questions and answers from chapter Health and Diseases of Biology.
76
Infection of Ascaris occurs due to
[1]
Contaminated food and water
[2]
Mosquito bite
[3]
Tse-tse fly
[4]
Sand fly
Answer: Contaminated food and water
77
Disease caused by Trypanosoma gambiense is
[1]
Sleeping sickness
[2]
Kala-azar
[3]
Diphtheria
[4]
Dysentery
Answer: Sleeping sickness
78
The symptom of typhoid called intestinal hemorrhage occurs in ____ week of infection.
[1]
1st
[2]
2nd
[3]
3rd
[4]
4th
79
In AIDs the system which fails is
[1]
Digestive
[2]
Repsiratory
[3]
Defence
[4]
Sensory
80
Study of mode of transmission of diseases is called
[1]
Parasitology
[2]
epidemiology
[3]
nosology
[4]
immunology
81
Deficiency of iodine causes
[1]
Tetany
[2]
Cretinism
[3]
Myxodema
[4]
Goitre
82
AIDS virus HIV first starts destroying
[1]
Leucocytes
[2]
Thromoboycytes
[3]
B-lymphocytes
[4]
T-lymphocytes
83
Excessive bleeding from an injury is due to deficiency of
[1]
Vitamin A
[2]
Vitamin B
[3]
Vitamin K
[4]
Vitamin E
84
Which one is vehicle borne?
[1]
Typhoid
[2]
Cancer
[3]
Rabies
[4]
Mumps
85
Bronchogenic carcinoma is cancer of
[1]
Breast
[2]
Intestine
[3]
Lungs
[4]
Liver
86
The cells which act as parasites in the body
[1]
Schwann cells
[2]
Hepatocytes
[3]
Kupffer’s cells
[4]
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
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
89
Cancer of blood is
[1]
Lymphoma
[2]
Sarcoma
[3]
Osteoma
[4]
Leukemia
90
Pair of viral diseases is
[1]
Ringwork, AIDS
[2]
Typhoid, Tuberculosis
[3]
Dysentery, common cold
[4]
Common Cold, AIDS
Answer: Common Cold, AIDS
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