Evaluation:
Published: 17.04.2004.
Language: English
Level: Secondary school
Literature: n/a
References: Not used
  • Summaries, Notes 'Biology Investigation Osmosis', 1.
  • Summaries, Notes 'Biology Investigation Osmosis', 2.
  • Summaries, Notes 'Biology Investigation Osmosis', 3.
Extract

For this investigation we are going to find out whether potato chips placed in a range of different concentrated sugar solutions increase or decrease in mass.
Background knowledge
Osmosis is the passage of water molecules from a weaker, dilute, solution into a stronger, more concentrated, solution through a semi permeable membrane.
Each cell in a leaf is surrounded by a membrane, which separates the contents of the cell from the outside. The membrane has tiny holes in it, which allows small molecules only to pass through it.

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