Human Health and Disease MCQ Questions for Class 12 Biology Chapter 8 with Answers

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NCERT MCQ Chapters for Class 12 Biology


Q1. Hepatitis B is transmitted through

(A) sneezing
(B) female Anopheles
(C) coughing
(D) blood transfusion.


(B) female Anopheles


Q2. Antibodies present in colostrum which protect the new born from certain diseases is of

(A) IgG type
(B) IgA type
(C) IgD type
(D) IgE type.


(B) IgA type


Q3. Opiates are obtained from

(A) Thea sinesis
(B) Coffea Arabica
(C) Oryzasativa
(D) Papaver Seminiferum


(D) Papaver Seminiferum


Q4. Alzheimer disease in humans is associated with the deficiency of

(A) Glutamic acid
(B) Dopamine
(C) Acetylcholine
(D) Gamma amnobutyric acid (GABA)


(C) Acetylcholine


Q5. Smack’ is a drug obtained from the:

(A) latex of Papaver somniferum
(B) leaves of Cannabis sativa
(C) flowers of Dhatura
(D) fruits of Erythroxylon coca.


(A) latex of Papaver somniferum


Q6. Diacetyl morphine is commonly known as

(A) cocaine
(B) hashish
(C) ganja
(D) heroin


(D) heroin


Q7. Pathogenic bacterium that cause typhoid fever in human being is

(A) Salmonella typhi
(B) Streptococcus pneumonia
(C) Streptococcus typhi
(D) Salmonella feverish


(A) Salmonella typh


Q8. The sporozoites that cause infection when a female Anopheles mosquito bites a human being are formed in:

(A) Liver of human
(B) RBCs of mosquito
(C) Salivary glands of mosquito
(D) Intestine of human.


(C) Salivary glands of mosquit


Q9. Which one of the following sets includes bacterial diseases ?

(A) Tetanus, tuberculosis, measles
(B) Diptheria, leprosy, plague
(C) Cholera, typhoid, mumps
(D) Malaria, mumps, poliomyelits


(B) Diptheria, leprosy, plague


Q10. AIDS occur by which cause?

(A) Reduction of T-Helper cells
(B) Reduction of Killer T-cells
(C) Auto immune
(D) Less production of interferon


(A) Reduction of T-Helper cells


Q11. World AIDS day is:

(A) 1 May
(B) 20 December
(C) 1 June
(D) 1 December


(D) 1 December


Q12. The substance produced by a cell in viral infection that can protect other cells from further infection is

(A) serotonin
(B) colostrum
(C) interferon
(D) histamine.


(C) interferon


Q13. AIDS is caused by HIV. Among the following, which one is not a mode of transmission of HIV?

(A) Transfusion of contaminated blood
(B) Sharing the infected needles
(C) Shaking hands with infected persons
(D) Sexual contact with infected persons.


(C) Shaking hands with infected persons


Q14. Which of the following is most infectious disease?

(A) Hepatitis B
(B) AIDS
(C) Amoebiosis
(D) Malaria


(A) Hepatitis B


Q15. The substance produced by a cell on viral infection that can protect other cells from further infection is

(A) serotonin
(B) colostrum
(C) interferon
(D) histamine


(C) interferon


Q16. Use of anti-histamines and steroids gives a quick relief from

(A) allergy
(B) nausea
(C) cough
(D) fever


(A) allergy


Q17. Typhoid fever is caused by

(A) Salmonella
(B) Shigella
(C) Escherichia
(D) Giardia


(A) Salmonella


Q18. The chemical test that is used for diagnosis of typhoid is:

(A) ELISA Test
(B) ESR Test
(C) PCR Test
(D) Widal Test.


(D) Widal Test.


Q19. Which one of the following disease is non – communicable ?

(A) Diphtheria
(B) Flu
(C) Cancer
(D) Malaria


(C) Cancer


Q20. Opium is:

(A) Hemp
(B) Charas
(C) Heroin
(D) Nicotin


(C) Heroin


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