JAMB Biology questions: Respiration

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

1. Question 21· Respiration· JAMB

   Compared with aerobic respiration, anaerobic respiration releases

   • Ano energy at all
   • Bmore energy
   • Cthe same energy
   • Dless energy per molecule of glucose

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2. Question 22· Respiration· JAMB

   The rate of breathing is mainly controlled by the concentration of

   • Anitrogen in the lungs
   • Boxygen in the air
   • Cglucose in the blood
   • Dcarbon(IV) oxide in the blood

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3. Question 23· Respiration· JAMB

   The respiratory quotient for the respiration of carbohydrates is

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

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4. Question 24· Respiration· JAMB

   The Krebs cycle of aerobic respiration takes place in the

   • Acell membrane
   • Bcytoplasm
   • Cribosomes
   • Dmitochondria

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5. Question 25· Respiration· JAMB

   Glycolysis, the first stage of respiration, takes place in the

   • Anucleus
   • Bmitochondrion
   • Ccytoplasm
   • Dchloroplast

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6. Question 26· Respiration· JAMB

   Glycolysis takes place in the

   • Acytoplasm
   • Bmitochondria
   • Cnucleus
   • Dchloroplast

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7. Question 27· Respiration· JAMB

   During exhalation in humans, the

   • Adiaphragm contracts and flattens
   • Bexternal intercostal muscles relax and the ribs move down
   • Cchest cavity becomes larger
   • Dribs move upwards and outwards

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8. Question 28· Respiration· JAMB

   The molecule that serves as the energy currency of the cell is

   • Aglucose
   • BDNA
   • CATP
   • DRNA

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9. Question 29· Respiration· JAMB

   The rate of breathing in humans is controlled mainly by the level of

   • Aurea
   • Boxygen in the stomach
   • Cglucose
   • Dcarbon(IV) oxide in the blood

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10. Question 30· Respiration· JAMB

    Anaerobic respiration in human muscles produces

    • Aethanol
    • Blactic acid
    • Cethanol and carbon(IV) oxide
    • Doxygen

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    Explanation and discussion