Osmosis

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The movement of water molecules from an area of higher water concentration to an area of lower water concentration through a semi-permeable membrane.
ONLY water molecules move by Osmosis
Rules= TYPE; DEFENITION (include water molecules); SPM; IN/OUT
High to low
Down a concentration gradient
solution = water which has had something dissolved into it
will occur until concentrations reach equilibrium (equal), but osmois still occurs (sides just stay equal)
Net movement = total movement
When reached equilibrium, there will be no net movement
When there has been no overall gain/loss, equilibrium has been reached.
higher temperature = more kinetic energy = quicker rate of osmosis
The steeper the concentration gradient, the faster rate of osmosis
Animal cells will burst if put in high water concentrations, however the cell wall in a plant cell stops them from bursting

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Osmosis

Cards (13)

Osmosis

1.1 Cells and Movement Across Membranes

1.1.5 Movement Across Cell Membranes

2.1 Movement Across Membranes

cell differentiation

2.2 Cell Membranes

2.2 Cell Division and Stem Cells

3.2 Cell Membranes and Transport

1.1.1 Cell Structure

1.1.3 Cell Differentiation

1.1.2 Specialised Cells

2.4 Transport Across Membranes

1.1.4 Microscopy

1.3.2 Osmosis

Unit 4: Cell Communication and Cell Cycle

5.4 Chemical Cells and Fuel Cells

1. Cells

2.6 Cell division, cell diversity and cellular organisation

1.2.3 Stem Cells

1.2 What Happens in Cells (and What Do Cells Need)?

1.1.3 Cell Specialization