Important Question paper

11th Standard

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Biology

Read the ALL the Question carefully and answer 
Time : 01:00:00 Hrs
Total Marks : 100

    Part-A

    Answer ALL the questions 

    12 x 1 = 12
  1. Vexillary aestivation is characteristic of the family

    (a)

    Fabaceae

    (b)

    Asteraceae

    (c)

    Solanaceae

    (d)

    Brassicaceae

  2. Gynoecium with united carpels is termed as

    (a)

    Apocarpous

    (b)

    Multicarpellary

    (c)

    Syncarpous

    (d)

    None of the above

  3. Which of the following is a flowering plant with nodules containing filamentous nitrogen fixing micro-organisms?

    (a)

    Crotalaria juncea

    (b)

    Cycas revoluta

    (c)

    Cicer arietinum

    (d)

    Casuarina equisetifolia

  4. Flowers are zygomorphic in

    (a)

    Ceropegia

    (b)

    Thevetia

    (c)

    Datura

    (d)

    Solanum

  5. Duplicate specimen of the holotype collected from same population _____________.

    (a)

    Holotype

    (b)

    Isotype

    (c)

    Lectotype

    (d)

    Syntype

  6. The main function of the cuboidal epithelium is

    (a)

    Protection

    (b)

    Secretion

    (c)

    Absorption

    (d)

    Both (b) and (c)

  7. The ciliated epithelium lines the

    (a)

    Skin

    (b)

    Digestive tract

    (c)

    Gall bladder

    (d)

    Trachea

  8. Non-shivering thermogenesis in neonates produces heat through

    (a)

    White fat

    (b)

    Brown fat

    (c)

    Yellow fat

    (d)

    Colourless fat

  9. Transitional epithelium occurs in :

    (a)

    Blood vessels

    (b)

    Trachea

    (c)

    Kidney

    (d)

    Ureter/urinary bladder

  10. Find out the wrong match:

    (a)

    Eosinophils Allergic response

    (b)

    Basophils Secrete histamine and serotonin

    (c)

    Monocytes Secrete heparin

    (d)

    Lymphocytes Immune response

  11. Enterokinase takes part in the conversion of

    (a)

    Pepsinogen into pepsin

    (b)

    Trypsinogen into trypsin

    (c)

    Protein into polypeptide

    (d)

    Caseinogen into casein

  12. Which of the following combinations are not matched?

    (a)
    Column I Column II
    (a) Bilirubin and biliverdin i) Intestinal juice
    (b)
    Column I Column II
    (b) Hydrolysis of starch ii) Amylases
    (c)
    Column I Column II
    (c) Digestion of fat iii) Lipases
    (d)
    Column I Column II
    (d) Salivary gland iv) Parotid
  13. Part-B

    Answer ALL the questions 

    21 x 2 = 42
  14. Mention the types of special inflorescence.

  15. Mention the types of Mixed inflorescence.

  16. Define Involucre.

  17. What is a gynobasic style?

  18. What are the two processes necessary for the development of fruits?

  19. Do seedless fruits have triploid tissue? Why?

  20. Drupes and Nuts show single seed but are different. Justify.

  21. (a) Name the projection seen on the surface of pineapple and Jackfruit.
    (b) In Jack fruit the inflorescence axis produces above the fruit surface.

  22. I am dispersed by ant and I have Caruncle. Who am I?
    Note: Caruncle - Fleshy outgrowth at the base of the seed.

  23. Define Cymule

  24. Define bisexual flower

  25. What is meant by polygamous plant?

  26. What is Inflorescence?

  27. Differentiate between racemose and cymose.

  28. Differentiate between simple raceme and spike.

  29. Explain the different types of placentation with example.

  30. What are earthworm casts?

  31. How do earthworms breathe?

  32. Name the following.
    1. The largest bee in the colony.
    2. The kind of flight which the new virgin queen takes along with the drones out of the hive.

  33. What does a pace maker do?

  34. What are the advantages of CT over other imaging techniques?

  35. Part-C

    Answer ALL the questions 

    12 x 3 = 36
  36. Define Umbel.

  37. The mode of arrangement of either sepals or petals of a flower in bud condition is called aestivation. Draw the various types of aestivation.

  38. What is the meant by anther dehiscence? Explain the different kinds of anther dehiscence

  39. Draw the line diagram for the following inflorescence.
    (a) Simple Dichasium
    (b) Compound Dichasium

  40. How are cladistic groups classified?

  41. What is the need for cladistics?

  42. What is Karyotaxonomy / Cytotaxonomy?

  43. Differentiate between elastic fibres and elastic connective tissue.

  44. Name any four important functions of epithelial tissue and provide at least one example of a tissue that exemplifies each function.

  45. Head of cockroach is called hypognathous. Why?

  46. How do proteins differ from fats in their energy value and their role in the body?

  47. Digestive secretions are secreted only when needed. Discuss.

  48. Part-D

    Answer ALL the questions 

    2 x 5 = 10
  49. Describe different types of anthers in plants.

  50. Write an essay on fleshy fruits and its kind.

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