JAMB and WAEC Biology questions

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

1. Question 61· Cellular activities· WAEC

   A zygote divides repeatedly to form an embryo. The type of cell division involved is

   • Ameiosis
   • Bmitosis
   • Cbinary fission
   • Dbudding

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2. Question 62· Cellular activities· JAMB

   How many daughter cells are produced when one cell divides by meiosis?

   • A4
   • B2
   • C1
   • D8

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3. Question 63· Cellular activities· JAMB

   Pinocytosis is the uptake of

   • Agases
   • Bsolid particles
   • Cliquid droplets by a cell
   • Dlight

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4. Question 64· Cellular activities· JAMB

   Crossing over takes place during

   • Amitosis
   • Bprophase I of meiosis
   • Cmetaphase II of meiosis
   • Dinterphase

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5. Question 65· Cellular activities· JAMB

   Root hair cells take up mineral ions from a dilute soil solution mainly by

   • Aosmosis
   • Bactive transport
   • Cdiffusion only
   • Dphagocytosis

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   Explanation and discussion

6. Question 66· Cellular activities· JAMB

   In which stage of mitosis do the chromosomes line up at the equator of the spindle?

   • Aanaphase
   • Bprophase
   • Cmetaphase
   • Dtelophase

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7. Question 67· Cellular activities· WAEC

   The movement of molecules from a region of higher concentration to a region of lower concentration is

   • Aosmosis
   • Bdiffusion
   • Cactive transport
   • Dtranspiration

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   Explanation and discussion

8. Question 68· Cellular activities· WAEC

   Green plants trap light energy in order to

   • Aexcrete waste
   • Brelease carbon dioxide
   • Cabsorb water
   • Dmake food by photosynthesis

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9. Question 69· Cellular activities· JAMB

   The number of chromosomes in a human gamete is

   • A22
   • B46
   • C92
   • D23

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10. Question 70· Cellular activities· JAMB

    Which of the following cells are haploid?

    • Askin cells
    • Bgametes
    • Cmuscle cells
    • Dliver cells

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11. Question 71· Cellular activities· JAMB

    Pepsin works best in

    • Aalkaline conditions
    • Bacidic conditions
    • Cneutral conditions
    • Dthe mouth

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12. Question 72· Cellular activities· JAMB

    Active transport differs from diffusion because active transport

    • Auses energy to move substances against a concentration gradient
    • Bneeds no energy
    • Coccurs only in gases
    • Dmoves substances from high to low concentration

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13. Question 73· Cellular activities· JAMB

    A red blood cell placed in distilled water will

    • Ashrink
    • Bswell and burst
    • Cstay the same
    • Dbecome plasmolysed

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14. Question 74· Cellular activities· JAMB

    Mitosis produces

    • Acells with double the number of chromosomes
    • Bfour cells with half the number of chromosomes
    • Cgametes only
    • Dtwo daughter cells with the same number of chromosomes as the parent

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15. Question 75· Cellular activities· WAEC

    Active transport differs from diffusion in that it

    • Auses energy and can move substances against a concentration gradient
    • Bis always faster
    • Cneeds no membrane
    • Dmoves only water

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16. Question 76· Cellular activities· WAEC

    Red blood cells placed in distilled water swell and burst. This is called

    • Acrenation
    • Bplasmolysis
    • Chaemolysis
    • Dwilting

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17. Question 77· Cellular activities· WAEC

    Uptake of mineral ions by root hairs from a dilute soil solution is mainly by

    • Aactive transport
    • Bosmosis
    • Cdiffusion only
    • Dplasmolysis

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18. Question 78· Cellular activities· WAEC

    A plant cell that has lost water and whose cytoplasm has shrunk away from the cell wall is said to be

    • Ahaemolysed
    • Bturgid
    • Cflaccid only
    • Dplasmolysed

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19. Question 79· Cellular activities· WAEC

    Red blood cells placed in distilled water will

    • Aswell and burst
    • Bshrink
    • Cremain unchanged
    • Dbecome plasmolysed

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    Explanation and discussion

20. Question 80· Cellular activities· JAMB

    DNA is replicated during

    • Aanaphase
    • Bmetaphase
    • Cinterphase
    • Dtelophase

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    Explanation and discussion