WAEC Biology questions: Cellular activities

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

1. Question 21· Cellular activities· WAEC

   During mitosis, a cell with 46 chromosomes produces daughter cells each with

   • A23 chromosomes
   • B46 chromosomes
   • C92 chromosomes
   • D12 chromosomes

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2. Question 22· Cellular activities· WAEC

   A plant cell placed in strong salt solution loses water and its cytoplasm shrinks away from the cell wall. This is

   • Aplasmolysis
   • Bturgor
   • Chaemolysis
   • Dguttation

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3. Question 23· Cellular activities· WAEC

   A plant cell placed in a concentrated salt solution becomes

   • Aturgid
   • Bplasmolysed
   • Cburst
   • Dlarger

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4. Question 24· Cellular activities· WAEC

   The movement of water molecules across a semi-permeable membrane from a dilute to a more concentrated solution is

   • Adiffusion
   • Bplasmolysis
   • Cactive transport
   • Dosmosis

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   Explanation and discussion