JAMB Biology questions

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

1. Question 181· Excretion· JAMB

   When the body is short of water, more antidiuretic hormone (ADH) is released. As a result,

   • Aurea production stops
   • Bless water is reabsorbed
   • Cmore dilute urine is produced
   • Dmore water is reabsorbed and a small volume of concentrated urine is produced

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2. Question 182· Excretion· JAMB

   Plants excrete oxygen as a by-product of

   • Aphotosynthesis
   • Brespiration
   • Ctranspiration
   • Dgermination

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3. Question 183· Excretion· JAMB

   Urine passes from each kidney to the bladder through the

   • Arenal artery
   • Burethra
   • Cureter
   • DBowman's capsule

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4. Question 184· Excretion· JAMB

   Ultrafiltration in the kidney takes place in the

   • Aglomerulus and Bowman's capsule
   • Bloop of Henle
   • Ccollecting duct
   • Dureter

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5. Question 185· Excretion· JAMB

   In Amoeba, contractile vacuoles remove

   • Aoxygen
   • Bfood
   • Cexcess water
   • Durea

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6. Question 186· Excretion· JAMB

   Many plants get rid of some waste substances by storing them in

   • Aflowers only
   • Broot hairs
   • Cleaves that later fall off
   • Dthe xylem permanently

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7. Question 187· Excretion· JAMB

   The main nitrogenous waste removed by mammalian kidneys is

   • Acarbon(IV) oxide
   • Buric acid
   • Cammonia
   • Durea

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8. Question 188· Excretion· JAMB

   The main nitrogenous waste excreted by birds is

   • Acarbon(IV) oxide
   • Burea
   • Cammonia
   • Duric acid

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9. Question 189· Growth· JAMB

   In a maize grain, the main food store is the

   • Aplumule
   • Bcotyledon
   • Cradicle
   • Dendosperm

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10. Question 190· Growth· JAMB

    The most reliable measure of growth in an organism is an increase in

    • Aheight only
    • Bfresh mass
    • Cdry mass
    • Dvolume of water

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11. Question 191· Growth· JAMB

    Secondary growth (increase in girth) in dicotyledonous stems is due to the activity of the

    • Aapical meristem
    • Bcambium
    • Cepidermis
    • Dpith

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12. Question 192· Growth· JAMB

    When the terminal bud of a plant is removed, the side buds start to grow. This shows that

    • Aauxin from the terminal bud normally suppresses the side buds (apical dominance)
    • Bside buds need light
    • Cthe plant has stopped growing
    • Droots control the buds

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13. Question 193· Growth· JAMB

    The growth curve of a population or organism over time is typically

    • Aa falling curve
    • Ba straight line
    • CU-shaped
    • Dsigmoid (S-shaped)

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14. Question 194· Growth· JAMB

    A shoot bends towards light because auxin

    • Aaccumulates on the shaded side, making those cells grow faster
    • Bis destroyed on the shaded side
    • Ccollects on the lit side and speeds growth there
    • Dstops all growth

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15. Question 195· Growth· JAMB

    In complete metamorphosis, the stage between larva and adult is the

    • Aegg
    • Bnymph
    • Cpupa
    • Dinstar

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16. Question 196· Growth· JAMB

    Growth in living organisms involves

    • Aonly an increase in water content
    • Ba decrease in mass
    • Can increase in the number and size of cells
    • Dloss of cells

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17. Question 197· Growth· JAMB

    Which seed shows epigeal germination?

    • Asorghum
    • Bmaize
    • Crice
    • Dbean

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18. Question 198· Growth· JAMB

    The plant hormone that promotes dormancy and the falling of leaves is

    • Aauxin
    • Babscisic acid
    • Cgibberellin
    • Dcytokinin

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19. Question 199· Growth· JAMB

    Germination in which the cotyledons are carried above the soil is

    • Ahypogeal
    • Bepigeal
    • Cvivipary
    • Ddormancy

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20. Question 200· Growth· JAMB

    Ethylene (ethene) in plants promotes

    • Afruit ripening
    • Bstem growth
    • Croot formation
    • Dflowering only

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