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12th Standard Bio-Zoology English Medium Human Health and Diseases Reduced Syllabus Important Questions 2021

12th Standard

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Biology

Time : 01:00:00 Hrs
Total Marks : 100

    Multiple Choice Questions

    15 x 1 = 15
  1. A 30 year old woman has bleedy diarrhoea for the past 14 hours, which one of the following organisms is likely to cause this illness?

    (a)

    Streptococcus pyogens

    (b)

    Clostridium difficile

    (c)

    Shigella dysenteria

    (d)

    Salmonella enteritidis

  2. Paratope is an

    (a)

    Antibody binding site on variable regions

    (b)

    Antibody binding site on heavy regions

    (c)

    Antigen binding site on variable regions

    (d)

    Antigen binding site on heavy regions

  3. Allergy involves

    (a)

    IgE

    (b)

    IgG

    (c)

    lgA

    (d)

    IgM

  4. Rigidity of the Jaw muscle is a symptom of__________

    (a)

    Typhoid

    (b)

    Kala azar

    (c)

    Tetanus

    (d)

    Chikungunya

  5. The site of infection for yersinia pestis is___________

    (a)

    Intestine

    (b)

    Lungs

    (c)

    Lymph nodes

    (d)

    Nervous system

  6. Vector control research Centre is located in__________

    (a)

    Chennai

    (b)

    Delhi

    (c)

    Puducherry

    (d)

    Hyderabad

  7. ________is a dermotropic disease

    (a)

    Influenza

    (b)

    Measles

    (c)

    Cold

    (d)

    Rabies

  8. ________is a DNA virus

    (a)

    Rubella

    (b)

    Varicella

    (c)

    Polio

    (d)

    Mumps

  9. The incubation period of malaria' is_______days.

    (a)

    10

    (b)

    12

    (c)

    15

    (d)

    18

  10. Which statement is wrong regarding the malaria?

    (a)

    In the human liver, the sporozoites undergo sexual fission

    (b)

    Erythrocytes lyse and relase the merozoites and haemozoin

    (c)

    In the mosquito's gut, the ookinete is formed

    (d)

    Male and female gametes develop in the body of a mosquito.

  11. Continuous consumption of alcohol affects ___________

    (a)

    Heart

    (b)

    Kidney

    (c)

    liver

    (d)

    brain

  12. This is not a lifestyle disorder in man

    (a)

    Cancer

    (b)

    diabetes

    (c)

    cardiovascular disease

    (d)

    lung disease

  13. Yellow fever is a _____________ type of disease.

    (a)

    Neurotropic

    (b)

    Viscerotropic

    (c)

    Pneumotropic

    (d)

    Dermotropic

  14. The enzyme attached to RNA of HIV is _________________

    (a)

    RNA polymerase

    (b)

    reverse transcriptase

    (c)

    primase

    (d)

    endonuclease

  15. _________________ is a chronic memory disorder due to alcohol misuse.

    (a)

    Cushing's syndrome

    (b)

    Turners' syndrome

    (c)

    Klinefelters' syndrome

    (d)

    Korsakoff syndrome

  16. 2 Marks

    10 x 2 = 20
  17. Name the causal agent of swine flu. Mention two symptoms.

  18. What is sporogony?

  19. What is haemozoin?

  20. Differentiate between infectious and non-infections disease.

  21. Name any two fungal disease and helminthic disease.

  22. Filarial worm and Plasmodium both are digenic parasltes Man is a common host for both parasites. Name the other host.

  23. Name the causative organism of filariasis and mention the site of infection of parasite.

  24. What is diapedesis?

  25. Write any two differences between CMI and AMI

  26. Expand
    (a) MALT
    (b) NACO

  27. 3 Marks

    10 x 3 = 30
  28. Explain the structure of immunoglobulin with suitable diagram.

  29. What is vaccine? What are its types?

  30. A person is infected by HIV. How will you diagnose for AIDS?

  31. Autoimmunity is a misdirected immune response. Justify.

  32. Write a few lines about filarial worm.

  33. Define hygiene as given by WHO.

  34. Mention any 3 effects of alcohol in the during adolescence.

  35. What is drug abus?

  36. Comment on Malaria vaccine.

  37. Explain
    (a) Cell Mediated Immunity
    (b) Antibody Mediated Immunity

  38. 5 Marks

    7 x 5 = 35
  39. List the causative agent, mode of transmission and symptoms for Diphtheria and Typhoid.

  40. (i) Write the scientific name of the filarial worm that causes filariasis.
    (ii) Write the symptoms of filariasis.
    (iii) How is this disease transmitted?

  41. Why do you think it is not possible to produce vaccine against 'common cold'?

  42. List any five viral diseases, their casuative agents, site of infection, mode of transmission and symptoms

  43. How primary immune response differ from secondary immune response?

  44. Describe the structure of HIV with a diagram

  45. Explain the events in life cycle of Plasmodium in the secondary host/Man.

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