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    CBSE

    Subject

    Biology
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    NEET Biology : Breathing and Exchange of Gases

    Multiple Choice Questions

    31.

    From which of the following plant is a medicine for respiratory disorders obtained?

    • Ephedra

    • Eucalyptus

    • Cannabis

    • Saccharum

    Answer
    • 32.

    Which of the following animals possess non-elastic lungs with elastic air sacs connected to them?

    • Reptiles

    • Birds

    • Amphibians

    • Mammals

    Answer
    • 33.

    Which of the following is a respiratory disease?

    • Polio

    • Arthritis

    • Asthma

    • Cancer

    Answer
    • 34.

    Dead space air in man is

    • 500 ml

    • 150 ml

    • 250 ml

    • 1.5 L

    Answer
    • 35.

    The faster breathing in high fever is due to the

    • Additional requirement of O2 for the invader germs

    • High temperature of the body

    • Mental worry of a patient

    • Loss of appetite

    Answer
    • 36.

    Carotid labyrinth contains

    • Olfactory receptors

    • Baroreceptors

    • Chemoreceptors

    • Phonoreceptors

    Answer
    • 37.

    Haldane effect refers to

    • More acidity in the blood

    • Less acidity in the blood

    • More basicity in the blood

    • Less basicity in the blood

    Answer
    • 38.

    The exchange of gases in the alveoli of the lungs takes place by

    • Osmosis

    • Simple diffusion

    • Passive transport

    • Active transport

    Answer
    • 39.

    During inspiration, the diaphragm

    • expands

    • shows no change

    • contracts and flattens

    • relaxes to become dome- shaped

    Answer
    • 40.

    After a deep inspiration and maximum expiration, the capacity of lungs is known as

    • vital capacity

    • tidal volume

    • IRV

    • ERV

    Answer
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