WAEC Biology questions: Transport

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

1. Question 1· Transport· WAEC

   A person of blood group O is called a universal donor because his red cells

   • Acarry the rhesus factor
   • Bcarry both A and B antigens
   • Ccarry no antibodies
   • Dcarry neither A nor B antigens

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2. Question 2· Transport· WAEC

   Phloem tissue transports

   • Amineral salts only
   • Bwater
   • Cmanufactured food, mainly sugars
   • Dcarbon(IV) oxide

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3. Question 3· Transport· WAEC

   Xylem vessels transport

   • Aoxygen only
   • Bmanufactured food
   • Cwater and mineral salts
   • Dhormones only

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4. Question 4· Transport· WAEC

   Water vapour leaving a plant through its stomata is called

   • Atranslocation
   • Bguttation
   • Crespiration
   • Dtranspiration

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5. Question 5· Transport· WAEC

   Digested food is carried round the body mainly in the blood

   • Ared cells
   • Bplatelets
   • Cplasma
   • Dwhite cells

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6. Question 6· Transport· WAEC

   The hepatic portal vein carries blood from the

   • Aintestines to the liver
   • Bliver to the heart
   • Cheart to the lungs
   • Dkidneys to the heart

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7. Question 7· Transport· WAEC

   The vessel that carries blood from the heart to the lungs is the

   • Aaorta
   • Bpulmonary vein
   • Cpulmonary artery
   • Dvena cava

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8. Question 8· Transport· WAEC

   Which blood cells defend the body against infection?

   • ARed blood cells
   • BPlasma cells only
   • CPlatelets
   • DWhite blood cells

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9. Question 9· Transport· WAEC

   Which blood vessel carries oxygenated blood from the lungs to the heart?

   • Avena cava
   • Bpulmonary artery
   • Cpulmonary vein
   • Daorta

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10. Question 10· Transport· WAEC

    Blood vessels that carry blood away from the heart are

    • Aarteries
    • Bveins
    • Ccapillaries
    • Dlymph vessels

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11. Question 11· Transport· WAEC

    Which conditions increase the rate of transpiration?

    • Adry, warm and windy air
    • Bhigh humidity
    • Cdarkness
    • Dstill, cool air

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12. Question 12· Transport· WAEC

    Blood platelets are important in

    • Atransporting urea only
    • Bcarrying oxygen
    • Cfighting infection by antibodies
    • Dblood clotting

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13. Question 13· Transport· WAEC

    The smallest blood vessels, whose walls are one cell thick, are

    • Acapillaries
    • Barteries
    • Cveins
    • Dvenules

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14. Question 14· Transport· WAEC

    Transpiration is increased by

    • Astill air
    • Bhigh humidity
    • Cdarkness
    • Dhigh temperature and wind

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15. Question 15· Transport· WAEC

    Red blood cells carry oxygen because they contain

    • Afibrinogen
    • Bchlorophyll
    • Cantibodies
    • Dhaemoglobin

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16. Question 16· Transport· WAEC

    The chamber of the heart with the thickest muscular wall is the

    • Aleft ventricle
    • Bright ventricle
    • Cleft atrium
    • Dright atrium

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17. Question 17· Transport· WAEC

    Xylem tissue transports

    • Aoxygen
    • Bmanufactured food
    • Chormones only
    • Dwater and mineral salts

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    Explanation and discussion

18. Question 18· Transport· WAEC

    A person with blood group O is called a universal donor because their red cells have

    • Aantibodies only
    • Bboth antigens
    • Cno A or B antigens
    • Dno plasma

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19. Question 19· Transport· WAEC

    Valves in veins

    • Apump blood
    • Bprevent backflow of blood
    • Ccarry oxygen
    • Dmake blood cells

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20. Question 20· Transport· WAEC

    Blood platelets help in

    • Amaking antibodies
    • Bcarrying oxygen
    • Cengulfing germs
    • Dclotting

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    Explanation and discussion