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11th Standard English Medium Biology (Zoology) Subject Respiration Book Back 1 Mark Questions with Solution Part - II

11th Standard

    Reg.No. :
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Biology

Time : 01:00:00 Hrs
Total Marks : 5

    1 Marks

    5 x 1 = 5
  1. CO2 is transported through blood to lungs as _____.

    (a)

    carbonic acid

    (b)

    oxyhaemoglobin

    (c)

    carbamino haemoglobin

    (d)

    carboxy haemoglobin

  2. Vital capacity is _____.

    (a)

    TV + IRV

    (b)

    TV + ERV

    (c)

    RV + ERV

    (d)

    TV + IRV + ERV

  3. After a long deep breath, we do not respire for some seconds due to ______.

    (a)

    more CO2 in the blood

    (b)

    more O2 in the blood

    (c)

    less CO2 in the blood

    (d)

    less O2 in the blood

  4. Which of the following substances in tobacco smoke damage the gas exchange system?

    (a)

    carbon monoxide and carcinogens

    (b)

    carbon monoxide and nicotine

    (c)

    carcinogens and tar

    (d)

    nicotine and tar

  5. Which of the following best describes the process of gas exchange in the lungs?

    (a)

    Air moves in and out of the alveoli during breathing.

    (b)

    Carbon dioxide diffuses from deoxygenated blood in capillaries into the alveolar air.

    (c)

    Oxygen and carbon dioxide diffuse down their concentration gradients between blood and alveolar air.

    (d)

    Oxygen diffuses from alveolar air into the deoxygenated blood.

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