JAMB Biology questions: Respiration

30 questions with answers and explanations. Tap an option to check yourself.

1. Question 1· Respiration· JAMB

   Anaerobic respiration in yeast produces:

   • Alactic acid only
   • Bethanol and carbon dioxide
   • Cwater and oxygen
   • Dglucose

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2. Question 2· Respiration· JAMB

   In flowering plants, gaseous exchange takes place mainly through

   • Astomata and lenticels
   • Broot hairs only
   • Cthe xylem
   • Dthe flowers

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3. Question 3· Respiration· JAMB

   Complete aerobic respiration of one glucose molecule yields about

   • A2 ATP
   • B38 ATP
   • C100 ATP
   • D6 ATP

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4. Question 4· Respiration· JAMB

   Complete aerobic respiration of one molecule of glucose produces about

   • A6 molecules of ATP
   • B2 molecules of ATP
   • C100 molecules of ATP
   • D38 molecules of ATP

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5. Question 5· Respiration· JAMB

   Gaseous exchange in the mammalian lung takes place in the:

   • Atrachea
   • Bbronchi
   • Cpleura
   • Dalveoli

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6. Question 6· Respiration· JAMB

   The alveoli are efficient for gaseous exchange because they

   • Acontain no capillaries
   • Bhave thick walls
   • Care dry
   • Dhave thin, moist walls and a rich blood supply

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7. Question 7· Respiration· JAMB

   The respiratory surface of an earthworm is its

   • Agills
   • Blungs
   • Cmoist skin
   • Dtracheae

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8. Question 8· Respiration· JAMB

   During vigorous exercise, anaerobic respiration in human muscles produces

   • Alactic acid
   • Bethanol
   • Cglucose
   • Doxygen

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9. Question 9· Respiration· JAMB

   Fish exchange gases through their

   • Alungs
   • Bgills
   • Cskin only
   • Dswim bladder

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10. Question 10· Respiration· JAMB

    Insects exchange gases through

    • Agills
    • Ba system of tracheae opening at spiracles
    • Clungs
    • Dthe skin only

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11. Question 11· Respiration· JAMB

    Which word equation represents aerobic respiration?

    • Aglucose + oxygen → carbon(IV) oxide + water + energy
    • Bcarbon(IV) oxide + water → glucose + oxygen
    • Cglucose → lactic acid + energy
    • Dglucose → ethanol + carbon(IV) oxide

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12. Question 12· Respiration· JAMB

    Anaerobic respiration in yeast is also called

    • Atranspiration
    • Bphotosynthesis
    • Cfermentation
    • Ddigestion

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13. Question 13· Respiration· JAMB

    The volume of air breathed in or out in one normal breath is the

    • Aresidual volume
    • Bvital capacity
    • Ctidal volume
    • Dtotal lung capacity

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14. Question 14· Respiration· JAMB

    During inhalation in humans, the diaphragm

    • Acontracts and flattens
    • Brelaxes and becomes dome-shaped
    • Cmoves upwards
    • Ddoes not move

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15. Question 15· Respiration· JAMB

    The respiratory quotient (RQ) when carbohydrate is respired aerobically is

    • A0.9
    • B0.7
    • C1.0
    • D2.0

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16. Question 16· Respiration· JAMB

    Yeast is used in baking bread because it produces

    • Astarch
    • Boxygen, which softens the bread
    • Clactic acid
    • Dcarbon(IV) oxide, which makes the dough rise

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17. Question 17· Respiration· JAMB

    The Krebs cycle takes place in the

    • Acell membrane
    • Bcytoplasm
    • Cribosomes
    • Dmatrix of the mitochondria

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18. Question 18· Respiration· JAMB

    Exhaled air turns lime water milky because it contains more

    • Aoxygen
    • Bcarbon(IV) oxide
    • Cnitrogen
    • Dwater vapour

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19. Question 19· Respiration· JAMB

    In a fish, water flows over the gills in the opposite direction to the blood. This counter-current flow

    • Amaximises the uptake of oxygen
    • Bslows down the heart
    • Cremoves salt from the blood
    • Dreduces water loss

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20. Question 20· Respiration· JAMB

    After vigorous exercise, a person continues to breathe deeply in order to

    • Aremove excess nitrogen
    • Bcool the body
    • Csupply oxygen to break down the lactic acid built up (repay the oxygen debt)
    • Dstore oxygen in the muscles

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