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WAEC Biology questions: Cellular activities

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

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All topicsCell structure and organisation · 26Cellular activities · 24Co-ordination and control · 27Ecology · 33Evolution · 18Excretion · 22Growth · 18Heredity and variation · 24Nutrition · 30Reproduction · 29Respiration · 25Support and movement · 22Transport · 27Variety of organisms · 28

  1. Question 1· Cellular activities· WAEC

    Osmosis is the movement of

    Explanation and discussion

  2. Question 2· Cellular activities· WAEC

    Irritability in living things means

    Explanation and discussion

  3. Question 3· Cellular activities· WAEC

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

    Explanation and discussion

  4. Question 4· Cellular activities· WAEC

    The type of cell division that produces gametes is

    Explanation and discussion

  5. Question 5· Cellular activities· WAEC

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

    Explanation and discussion

  6. Question 6· Cellular activities· WAEC

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

    Explanation and discussion

  7. Question 7· Cellular activities· WAEC

    Green plants trap light energy in order to

    Explanation and discussion

  8. Question 8· Cellular activities· WAEC

    Active transport differs from diffusion in that it

    Explanation and discussion

  9. Question 9· Cellular activities· WAEC

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

    Explanation and discussion

  10. Question 10· Cellular activities· WAEC

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

    Explanation and discussion

  11. Question 11· Cellular activities· WAEC

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

    Explanation and discussion

  12. Question 12· Cellular activities· WAEC

    Red blood cells placed in distilled water will

    Explanation and discussion

  13. Question 13· Cellular activities· WAEC

    Plasmolysis occurs when a plant cell is placed in a

    Explanation and discussion

  14. Question 14· Cellular activities· WAEC

    Cell division that produces cells identical to the parent cell is

    Explanation and discussion

  15. Question 15· Cellular activities· WAEC

    Root hair cells absorb water from the soil by

    Explanation and discussion

  16. Question 16· Cellular activities· WAEC

    Wilting of plants on a hot afternoon is due to

    Explanation and discussion

  17. Question 17· Cellular activities· WAEC

    In a flowering plant, meiosis takes place in the

    Explanation and discussion

  18. Question 18· Cellular activities· WAEC

    Turgidity in plant cells helps to

    Explanation and discussion

  19. Question 19· Cellular activities· WAEC

    Which process gives off oxygen as a by-product?

    Explanation and discussion

  20. Question 20· Cellular activities· WAEC

    The movement of water molecules from a dilute solution to a more concentrated one through a selectively permeable membrane is

    Explanation and discussion

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