CBSE Class 12 Biology – MCQ and Online Tests – Unit 8 – Human Health and Disease
Every year CBSE conducts board exams for 12th standard. These exams are very competitive to all the students. So our website provides online tests for all the 12th subjects. These tests are also very effective and useful for those who preparing for competitive exams like NEET, JEE, CA etc. It can boost their preparation level and confidence level by attempting these chapter wise online tests.
These online tests are based on latest CBSE Class 12 syllabus. While attempting these our students can identify the weak lessons and continuously practice those lessons for attaining high marks. It also helps to revise the NCERT textbooks thoroughly.
CBSE Class 12 Biology – MCQ and Online Tests – Unit 8 – Human Health and Disease
Question 1.
Following is Hallucinator
(a) LSD
(b) Heroin
(c) Cocein
(d) Morphin
Answer
Answer: (a) LSD
Question 2.
By the plant of which family Heroin is obtained?
(a) Leguminaceae
(b) Papa Veraceae
(c) Liliaece
(d) Solanaceae
Answer
Answer: (b) Papa Veraceae
Question 3.
Opiates are obtained from
(a) Thea sinesis
(b) Coffea Arabica
(c) Oryzasativa
(d) Papaver Seminiferum
Answer
Answer: (d) Papaver Seminiferum
Question 4.
Which organ of body is most affected by excessive intake of alcohol?
(a) Lungs
(b) Liver
(c) Stomach
(d) Spleen
Answer
Answer: (b) Liver
Question 5.
PCR is test for:
(a) HIV
(b) Cancer
(c) Tuberculosis
(d) Cholera
Answer
Answer: (a) HIV
Question 6.
Common cold is caused by:
(a) Retro virus
(b) Phage virus
(c) Rhino virus
(d) Sendai virus
Answer
Answer: (c) Rhino virus
Question 7.
Following which is STD:
(a) Typhoid
(b) Cholera
(c) Malaria
(d) Syphilis
Answer
Answer: (d) Syphilis
Question 8.
Pain-killer drugs:
(a) Makes Tissue
(b) Relieve from pain
(c) Relieve from tired
(d) Pain creater
Answer
Answer: (c) Relieve from tired
Question 9.
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
Answer
Answer: (a) Reduction of T-Helper cells
Question 10.
Wuchereria bancrofti causes filaria in human being. It is of which group:
(a) Protozoa
(b) Bacteria
(c) Virus
(d) Helminth
Answer
Answer: (d) Helminth
Question 11.
Which of the following is the cancer of blood?
(a) Sarcoma
(b) Lymphoms
(c) Leukemia
(d) None of these
Answer
Answer: (c) Leukemia
Question 12.
Gonorrhoea is caused by:
(a) By Treponema pallidium
(b) By Entamoeba gingivalis
(c) By Mycobacterium taprae
(d) By Neisseria gonorrhoeae
Answer
Answer: (d) By Neisseria gonorrhoeae
Question 13.
Kala-azar is transmitted by:
(a) By Sand fly
(b) By Tsetse fly
(c) By House fly
(d) By Mosquitoes
Answer
Answer: (a) By Sand fly
Question 14.
Antigen-binding site in an antibody, is found between:
(a) Two light chains
(b) Two heavy chains
(c) One heavy and one light chain
(d) Either between two light chains or between one heavy and one light chain
Answer
Answer: (d) Either between two light chains or between one heavy and one light chain
Question 15.
Disease associated with secretion of toxin is:
(a) TB
(b) AIDS
(c) Tetanus
(d) Food Poisoning
Answer
Answer: (c) Tetanus
Question 16.
Immune deficiency symdrome is caused by:
(a) Defected liver
(b) Defected thymus
(c) AIDS Virus
(d) Loss of Immune system
Answer
Answer: (c) AIDS Virus
Question 17.
Heroin is the form of :
(a) Aesthetic
(b) Hallucination
(c) Irritation
(d) All of the above
Answer
Answer: (b) Hallucination
Question 18.
Alcohol is the most socially accepted narcotic drug. Excessive consumption of alcohol leads to:
(a) Loss of memory
(b) Live cirrhosis
(c) State of hellucination
(d) Suppresion of brain function
Answer
Answer: (b) Live cirrhosis
Question 19.
Widal test is done to confirm:
(a) Malaria
(b) Typhoid
(c) AIDS
(d) Cancer
Answer
Answer: (b) Typhoid
Question 20.
World AIDS day is:
(a) 1 May
(b) 20 December
(c) 1 June
(d) 1 December
Answer
Answer: (d) 1 December
Question 21.
Which part of poppy plant yields opium:
(a) Latex from unripe capsules
(b) Dried roots
(c) Dried leaves
(d) Dired seeds
Answer
Answer: (a) Latex from unripe capsules
Question 22.
Caffein, Amphetamine and coceins are:
(a) Pain Killer
(b) Tranquillizer
(c) Hallucination
(d) Stimulant
Answer
Answer: (d) Stimulant
Question 23.
Memory cells are formed from:
(a) Monocytes
(b) Eosinophils
(c) Neutrophils
(d) Lymphocytes
Answer
Answer: (d) Lymphocytes
Question 24.
Opium is:
(a) Hemp
(b) Charas
(c) Heroin
(d) Nicotin
Answer
Answer: (c) Heroin
Question 25.
AIDS caused by:
(a) By fungus
(b) By Virus
(c) By Bacteria
(d) By Helminthes
Answer
Answer: (b) By Virus
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