JAMB and WAEC Biology questions: Cellular activities

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

1. Question 1· Cellular activities· WAEC

   Osmosis is the movement of

   • Awater molecules through a selectively permeable membrane from dilute to concentrated solution
   • Bsolute molecules from high to low concentration
   • Cions using energy
   • Dgases only

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2. Question 2· Cellular activities· WAEC

   Irritability in living things means

   • Athe ability to reproduce
   • Bthe ability to respond to stimuli
   • Cthe ability to grow
   • Dthe ability to feed

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3. Question 3· Cellular activities· WAEC

   When human red blood cells are left in pure water for some time, they will

   • Ashrink
   • Bremain unchanged
   • Cswell and burst
   • Dbecome plasmolysed

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4. Question 4· Cellular activities· WAEC

   The type of cell division that produces gametes is

   • Abinary fission
   • Bmitosis
   • Cmeiosis
   • Dbudding

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5. Question 5· 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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6. Question 6· Cellular activities· JAMB

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

   • A4
   • B2
   • C1
   • D8

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7. Question 7· Cellular activities· JAMB

   Pinocytosis is the uptake of

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

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8. Question 8· Cellular activities· JAMB

   Crossing over takes place during

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

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9. Question 9· 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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10. Question 10· 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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11. Question 11· 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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12. Question 12· 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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13. Question 13· Cellular activities· JAMB

    The number of chromosomes in a human gamete is

    • A22
    • B46
    • C92
    • D23

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14. Question 14· Cellular activities· JAMB

    Which of the following cells are haploid?

    • Askin cells
    • Bgametes
    • Cmuscle cells
    • Dliver cells

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15. Question 15· Cellular activities· JAMB

    Pepsin works best in

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

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16. Question 16· 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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17. Question 17· 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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18. Question 18· 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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19. Question 19· 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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20. Question 20· Cellular activities· WAEC

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

    • Acrenation
    • Bplasmolysis
    • Chaemolysis
    • Dwilting

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    Explanation and discussion