+1 Public Exam March Model Question Paper 2019

11th Standard

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Biology

Time : 02:30:00 Hrs
Total Marks : 70
    16 x 1 = 16
  1. The genome of viroid is ______ .

    (a)

    linear ssRNA

    (b)

    dumb-bell shaped ssRNA

    (c)

    circular ssRNA

    (d)

    linear dsRNA

  2. Curcuma amada, Curcuma domestica, Asparagus, Maranta are example of

    (a)

    Tuberous root

    (b)

    Beaded root

    (c)

    Moniliform root

    (d)

    Nodulose root

  3. Imperfect flowers will have __________ essential whorl(s).

    (a)

    only 1

    (b)

    2

    (c)

    none

    (d)

    4

  4. The term_____________________was introduced by Waldeyerin 1888.

    (a)

    Chromosome

    (b)

    Euchromatin

    (c)

    Heterochromatin

    (d)

    Nucleolus

  5. A living organism is differentiated from non- living structure based on

    (a)

    Reproduction

    (b)

    Growth

    (c)

    Metabolism

    (d)

    Movement

  6. Calotes versicolor is a

    (a)

    House lizard

    (b)

    Rock lizard

    (c)

    Garden lizard

    (d)

    Flying lizard

  7. To sustain themselves, earthworms must guide their way through the soil using their powerful muscles. They gather nutrients by ingesting organic matter and soil, absorbing what they need into their bodies.
    True or False: The two ends of the earthworm can equally ingest soil.

    (a)

    True

    (b)

    False

  8. During inspiration, the diaphragm

    (a)

    expands

    (b)

    unchanged

    (c)

    relaxes to become dome-shaped

    (d)

    contracts and flatten

  9. Identify the wrong match

    (a)

    Bowman's capsule - Glomerular filteration

    (b)

    DCT - Absorption of glucose

    (c)

    Henle's loop - Concentration of urine

    (d)

    PCT - Absorption of Na+ and K+ ions

  10. Choose the correct match

    (a)

    Frontal lobe - Language, Reading

    (b)

    Parietal lobe - Visual Processing

    (c)

    Occipital lobe - Behaviour, Intelligence

    (d)

    Temporal lobe - Speech, Hearing

  11. Which one of the following statement is correct

    (a)

    Calcitonin and thymosin are thyroid hormones

    (b)

    Pepsin and prolactin are secreted in stomach

    (c)

    Secretin and rhodopsin are polypeptide hormones

    (d)

    Cortisol and aldosterone are steroid hormones

  12. In ___________ the brood cells are of similar size and shape.

    (a)

    Apis dorsata

    (b)

    Apis adamsoni

    (c)

    Apis indica

    (d)

    Apis mellifera

  13. When a leaf trace extends from a vascular bundle in a dicot stem, what would be the arrangement of vascular tissues in the veins of the leaf?

    (a)

    Xylem would be on top and the phloem on the bottom

    (b)

    Phloem would be on top and the xylem on the bottom

    (c)

    Xylem would encircle the phloem

    (d)

    Phloem would encircle the xylem

  14. Experiment with Balsam demonstrates

    (a)

    Translocation of solute

    (b)

    Plasmolysis

    (c)

    Transpiration pull

    (d)

    Ascent of Sap

  15. The creation of proton gradient across the thylakoid membrane is a result of

    (a)

    Decrease in proton number in stroma

    (b)

    Accumulation of protons in the lumen

    (c)

    Decrease in pH in the lumen

    (d)

    All of the above

  16. In unisexual plants, sex can be changed by the application of

    (a)

    Ethanol

    (b)

    Cytokinins

    (c)

    ABA

    (d)

    Auxin

  17. 8 x 2 = 16
  18. What is plectostele? Give example.

  19. Compare the terms of andromonoecious and gynomonoecious.

  20. What ate nucleosomes?

  21. What is anadromous migration?

  22. How do earthworms breathe?

  23. Why are capillaries thin walled?

  24. Which vessels drain filtered blood from the kidneys?

  25. How is rigor mortis happened?

  26. What are the advantages of artificial insemination?

  27. How are meristerms classified based on function.

  28. Plant A in a nutrient medium shows whiptail disease plant B in a nutrient medium shows a little leaf disease. Identify mineral deficiency of plant A and B?

  29. How does ABA show Antagonistic effect?

  30. 6 x 3 = 18
  31. Name anyone RNA animal virus and DNA plant virus.

  32. Differentiate between aggregate fruit with multiple fruit.

  33. Differentiate between competitive and Allostreic

  34. Write the types of respiration seen in frog.

  35. What is appendicitis?

  36. How is the process of micturition altered by toilet training?

  37. List the causes for conductive deafness

  38. What are the main duties of a worker bee?

  39. What is amber?

  40. Name the plant growth regulators?

  41. 4 x 5 = 20
  42. Explain conjugation in bacteria.

  43. Explain clearly. A plant may have different names in 'different regions of the country or world. How do botanists solve this problem?

  44. How respiration takes place in cockroach?

  45. Define cardiac output. How can it be calculated.

  46. Identify the biological term.
    Homeostasis, excretion, glomerulus, urea, glomerular filtration, ureters, urine, Bowman's capsule, urinary system, reabsorption, micturition, osmosis, glomerular capillaries via efferent arteriole, proteins.
    (a) A liquid which gathers in the bladder.
    (b) Produced when blood is filtered in a Bowman's capsule.
    (c) Temporary storage of urine.
    (d) A ball of inter twined capillaries.
    (e) A process that changes glomerular filtrate into urine.
    (f) Removal of unwanted substances from the body.
    (g) Each contains a glomerulus.
    (h) Carry urine from the kidneys to the bladder.
    (i) Contains urea and many useful substances.
    (j) Blood is filtered through its walls into the Bowman's capsule.
    (k) Scientific term for urination.
    (I) Regulation of water and dissolved substances in blood and tissue fluid.
    (m) Carry urine from the kidneys to the bladder.
    (n) Consists of the kidneys, ureters and bladder.
    (o) Removal of useful substances from glomerular filtrate.
    (p) The process by which water is transported in the proximal convoluted tubule.
    (q) Where has the blood in the capillaries I surrounding the proximal convoluted tubule come from?
    (r) What solute the blood contains that are not present in the glomerular filtrate?

  47. Briefly explain the structure of thyroid gland.

  48. "Photosynthesis protects us from harmful ultraviolet radiation of sun" comment on the statement

  49. Describe the mechanism of photoperiodic induction of flowering.

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