Zoology - Respiration Book Back Questions

11th Standard

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Biology

Time : 00:45:00 Hrs
Total Marks : 30
    6 x 1 = 6
  1. Breathing is controlled by

    (a)

    cerebrum

    (b)

    medulla oblongata

    (c)

    cerebellum

    (d)

    pons

  2. The respiratory structures of insects are

    (a)

    tracheal tubes

    (b)

    gills

    (c)

    green glands

    (d)

    lungs

  3. The Oxygen Dissociation Curve is

    (a)

    sigmoid

    (b)

    straight line

    (c)

    curved

    (d)

    rectangular hyperbola

  4. During inspiration, the diaphragm

    (a)

    expands

    (b)

    unchanged

    (c)

    relaxes to become dome-shaped

    (d)

    contracts and flatten

  5. CO2 is transported through blood to lungs as

    (a)

    carbonic acid

    (b)

    oxyhaemoglobin

    (c)

    carbamino haemoglobin

    (d)

    carboxy haemoglobin

  6. Vital capacity is

    (a)

    TV + IRV

    (b)

    TV + IRV + ERV

    (c)

    RV + ERV

    (d)

    TV + TRV + ERV

  7. 4 x 2 = 8
  8. Name the respiratory organs of flatworm, earthworm, fish, prawn, cockroach and cat.

  9. Air moving from the nose to the trachea passes through a number of structures. List in order of the structures.

  10. Which structure seals the larynx when we swallow?

  11. Resistance in the airways is typically low. Why? Give two reasons.

  12. 2 x 3 = 6
  13. How the body makes long-term adjustments when living in high altitude.

  14. Why is pneumonia considered a dangerous disease?

  15. 2 x 5 = 10
  16. Diffusion of gases occurs in the alveolar region only and not in any other part of the respiratory system. Discuss

  17. Explain the conditions which creates problems in oxygen transport.

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