Osmosis and active transport

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What is osmosis?
Osmosis is the diffusion of water across a partially permeable membrane from a dilute solution (high concentration of water) to a concentrated solution (low concentration of water).
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Name three features of osmosis
1 Net movement of water - Net (overall) movement of water = from a dilute solution to a concentrated solution 2 Water movement - To make concentrations the same on both sides of the membrane 3 Partially permeable membrane - Allows water through
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Name a specialised plant cell that uses osmosis to absorb water
Root hair cell
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What word is used to describe a solution that has a high concentration of water?
Dilute
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Active transport takes place in:
Roots of plants and guts of humans
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What are the three main forms of transport in cells?
DIffusion, Osmosis and Active Transport
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Whats the difference between active and passive transport?
passive transport is natural and doesn't require much work while active transport does
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Name two examples of active transport
Mineral Absorption in plants and sugar absorption in the human gut
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Name the substances that are absorbed via active transport in the following structures:
Minerals (roots of plants) sugar e.g glucose (guts of humans)
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what is the difference between an independent and dependent variable?
An independent variable is the variable we change in an experiment. A dependent variable is what we measure in an experiment.
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which axis is the dependant variable on
the y axis
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Other cards in this set

Card 2

Front

Name three features of osmosis

Back

1 Net movement of water - Net (overall) movement of water = from a dilute solution to a concentrated solution 2 Water movement - To make concentrations the same on both sides of the membrane 3 Partially permeable membrane - Allows water through

Card 3

Front

Name a specialised plant cell that uses osmosis to absorb water

Back

Preview of the front of card 3

Card 4

Front

What word is used to describe a solution that has a high concentration of water?

Back

Preview of the front of card 4

Card 5

Front

Active transport takes place in:

Back

Preview of the front of card 5
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