B1 Diffusion Osmosis and Active transport

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What is diffusion?
Diffusion is the movement of particles from an area of high concentration to an area of low concentration.
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What is osmosis?
Osmosis is a special form of diffusion which is used to explain the movement of water particles/molecules from an area of high concentrated water (weak/dilute solution) to a area of low water concentration (strong/concentrated solution)
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What is active transport?
Active transport is where energy is used to move important minerals against a concentration gradient. (from low to high concentration)
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If there are more water molecules OUTSIDE a cell than inside, water will move______ the cell and spread out to reach equilibrium.
Into
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If there are more water molecules INSIDE a cell than outside, water will move ______ the cell and spread out to reach equilibrium.
Out
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What is the function of the cell wall?
To protect and support the cell
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How does a bacterial cell differ from a plant or animal cell?
It does not have a nucleus
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All organic compounds contain the element....?
Carbon
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Molecules are always ________ and colliding into each other.
Moving
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Unlike the cell wall, the cell membrane _______
Is found in all cells.
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The cell membrane and water are both involved in...?
The movement of materials into and out of the cell.
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What is the function of a cell membrane?
To control what enters and leaves the cell
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When the concentration molecules on both sides of a membrane is the SAME the solution ...........
has reached an equilibrium
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Why is water important for a cell?
Most chemical reactions in cells require water.
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Other cards in this set

Card 2

Front

What is osmosis?

Back

Osmosis is a special form of diffusion which is used to explain the movement of water particles/molecules from an area of high concentrated water (weak/dilute solution) to a area of low water concentration (strong/concentrated solution)

Card 3

Front

What is active transport?

Back

Preview of the front of card 3

Card 4

Front

If there are more water molecules OUTSIDE a cell than inside, water will move______ the cell and spread out to reach equilibrium.

Back

Preview of the front of card 4

Card 5

Front

If there are more water molecules INSIDE a cell than outside, water will move ______ the cell and spread out to reach equilibrium.

Back

Preview of the front of card 5
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