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Learning objective

Recognize that water enters and exits cells through the cell membrane by osmosis.

Read the explanation, check the common trap, then practise with flashcards and questions.

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  • Read the explanation.
  • Check key terms.
  • Practise with linked questions.
Cambridge IGCSE Combined ScienceMovement into and out of cellsCore content

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Quick explanation

Recognize that water enters and exits cells through the cell membrane by osmosis

  • This point belongs to Osmosis, especially Osmosis outcomes.
  • You need to be able to recognize that water enters and exits cells through the cell membrane by osmosis.
  • The key ideas to know are State.
  • Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

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Paper 3 structured question: Osmosis

Paper 3Theory (Core)3 marks

Description

Osmosis in Cells

Osmosis is the movement of water through a semi-permeable membrane from an area of higher concentration to an area of lower concentration. This process is vital for maintaining cell structure and function.

  1. a

    Explain the process of osmosis and its importance to cells.

    Aim for approximately 3 distinct marking points.

    [3]
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Cambridge IGCSECombined Science resources