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Breathing, gas exchange and respiration

7th grade (Year 8 in England) · 11 questions · Common Core: NGSS.MS-LS1-7, NGSS.HS-LS1-7 · England: KS3 Biology: Gas exchange systems, KS3 Biology: Cellular respiration, KS4 Combined Science: Cell biology

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  1. Question 1

    Where does gas exchange happen in the lungs?

    • A. in the trachea
    • B. in the ribs
    • C. in the diaphragm
    • D. in the alveoli (air sacs)

  2. Question 2

    Respiration: which statement is NOT true?

    • A. Respiration produces energy from nothing.
    • B. Mitochondria are where aerobic respiration happens.
    • C. Plants respire as well as photosynthesise.
    • D. Aerobic respiration releases more energy than anaerobic respiration.

  3. Question 3

    What is the difference between breathing and respiration?

    • A. Respiration only happens in the lungs.
    • B. Breathing moves air in and out; respiration is a reaction in cells that releases energy.
    • C. Breathing happens in every cell.
    • D. They are exactly the same.

  4. Question 4

    Respiration: which statement is NOT true?

    • A. Aerobic respiration releases more energy than anaerobic respiration.
    • B. Respiration happens in every living cell.
    • C. Respiration means breathing.
    • D. Mitochondria are where aerobic respiration happens.

  5. Question 5

    Complete the word equation for aerobic respiration: glucose + oxygen → carbon dioxide + ___

    • A. nitrogen
    • B. oxygen
    • C. water
    • D. lactic acid

  6. Question 6

    Respiration: which statement is NOT true?

    • A. Mitochondria are where aerobic respiration happens.
    • B. Plants respire as well as photosynthesise.
    • C. Respiration happens in every living cell.
    • D. Respiration means breathing.

  7. Question 7

    Complete the word equation for aerobic respiration: glucose + oxygen → carbon dioxide + ___

    • A. lactic acid
    • B. water
    • C. oxygen
    • D. nitrogen

  8. Question 8

    Respiration: which statement is NOT true?

    • A. Aerobic respiration releases more energy than anaerobic respiration.
    • B. Mitochondria are where aerobic respiration happens.
    • C. Respiration happens in every living cell.
    • D. Respiration means breathing.

  9. Question 9

    During hard exercise, muscles may respire without enough oxygen. What do they make?

    • A. alcohol and carbon dioxide
    • B. starch
    • C. lactic acid
    • D. oxygen

  10. Question 10

    Respiration: which statement is NOT true?

    • A. Respiration means breathing.
    • B. Plants respire as well as photosynthesise.
    • C. Aerobic respiration releases more energy than anaerobic respiration.
    • D. Mitochondria are where aerobic respiration happens.

  11. Question 11

    Where does gas exchange happen in the lungs?

    • A. in the ribs
    • B. in the diaphragm
    • C. in the alveoli (air sacs)
    • D. in the trachea

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  1. in the alveoli (air sacs)
  2. Respiration produces energy from nothing.
  3. Breathing moves air in and out; respiration is a reaction in cells that releases energy.
  4. Respiration means breathing.
  5. water
  6. Respiration means breathing.
  7. water
  8. Respiration means breathing.
  9. lactic acid
  10. Respiration means breathing.
  11. in the alveoli (air sacs)