Practice test

Respiratory system - Test Set 1

Review 20 exam-focused questions with detailed explanations, then start the interactive test when you are ready.

20 questions

Questions and explanations

  1. Question 1

    Find the correct sequence.
    1. Nostril -- Pharynx -- Epiglottis -- Trachea
    2. Nostril -- Epiglottis -- Pharynx -- Trachea
    3. Epiglottis -- Nostril -- Pharynx -- Trachea
    4. None of the above
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  2. Question 2

    Consider the following statements.
    i. Cigarette smoking leads to emphysema.
    ii. Its leads to the destruction of bronchioles.
    iii. Cigarette smoking leads to reduce both oxygen uptake and CO2 elimination.
    Which of the above are incorrect?
    1. i and ii
    2. Only ii
    3. Only i
    4. None of these
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  3. Question 3

    Tobacco smoke is injurious to health because it contains:
    1. Carbon monoxide
    2. Nicotine
    3. Polycyclic aromatic hydrocarbons
    4. Melathene
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  4. Question 4

    How many chambers does a mammalian heart have?
    1. 4
    2. 1
    3. 2
    4. 3
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  5. Question 5

    What accumulated in the muscles after continuous strenuous physical exercise as a result of temporary anaerobic respiration that causes muscular fatigue?
    1. ATP
    2. Lactic acid
    3. Ethyl alcohol
    4. Carbon dioxide
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  6. Question 6

    Just born baby has the respiratory rate as—
    1. 32 times/minute
    2. 26 times/minute
    3. 18 times/minute
    4. 15 times/minute
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  7. Question 7

    Muscle fatigue occurs due to accumulation of
    1. ATP
    2. ADP
    3. Lactic Acid
    4. Carbonic Acid
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  8. Question 8

    During hibernation state, frog respires by which of the following?
    1. Only heart
    2. Only lungs
    3. Only skin
    4. Both lungs and skin
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  9. Question 9

    There are how many vocal cords in the human voice box?
    1. One
    2. Two
    3. Three
    4. Four
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  10. Question 10

    Vocal chords in women are ______ than vocal chords in men.
    1. 5mm shorter
    2. 15mm shorter
    3. 5mm longer
    4. 15mm longer
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  11. Question 11

    Alveoli is related to which of the following system of human body?
    1. Circulatory system
    2. Excretory system
    3. Reproductive system
    4. Respiratory system
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  12. Question 12

    In humans, the sound is produced by the
    1. Oesophagus
    2. Larynx
    3. Medulla
    4. Epiglottis
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  13. Question 13

    The vocal cords in men are about ______ long.
    1. 10 mm
    2. 20 mm
    3. 30 mm
    4. 40 mm
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  14. Question 14

    In which of the following part of the cell does the pyruvic acid is broken down into carbon dioxide, water and energy?
    1. Cytoplasm
    2. Nucleus
    3. Mitochondria
    4. Chloroplast
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  15. Question 15

    In respirtion, cytosol plays a significant role in
    1. Oxidative phosphorylation
    2. Oxidative decarboxylation of pyruvic acid
    3. Krevs cycle
    4. Glycolysis
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  16. Question 16

    Which one of the following organs is the main respiratory organ of whale?
    1. Integuments
    2. Gills
    3. Lungs
    4. Trachea
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  17. Question 17

    Exchange of gases between the blood and the tissue of the body is called
    1. external respiration
    2. internal repiration
    3. cellular repiration
    4. None of above
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  18. Question 18

    fermentation is a type of ______ process.
    1. aerobic respiration
    2. anaerobic repiration
    3. exothermic reaction
    4. transpiration
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  19. Question 19

    In human, sound is produced by which organ?
    1. Larynx
    2. Tongue
    3. Lungs
    4. Diaphragm
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  20. Question 20

    During exhalation, the ribs ______
    1. move outwards
    2. move downwards
    3. move upwards
    4. do not move at all
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