Types of Transport Review

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Types of Transport Review
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The movement of particles against the direction
of diffusion requiring cell energy.

• ACTIVE TRANSPORT

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True or False?During diffusion molecules tend
to move down the concentration gradient.

• TRUE

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• DIFFUSION

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General transport method by which most molecules
move across the membrane.

• DIFFUSION

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A difference in concentration across a cells
membrane.

• CONCENTRATION GRADIENT

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Endocytosis of solid substances like bacteria and
food.

• PHAGOCYTOSIS

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• FACILITATED DIFFUSION

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A liquid mixture that involves the combination of
a solvent with a solute.

• SOLUTION

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Active transport of molecules out of a cell.

• EXOCYTOSIS

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• HYPERTONIC

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The movement of particles from high to low
concentration.

• DIFFUSION

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An equal amount of a substance inside the cell
and the environment the cell is living in.

• ISOTONIC

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• OSMOSIS

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The diffusion of water across a cell membrane.

• OSMOSIS

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Endocytosis of liquids.

• PINOCYTOSIS

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Active transport of molecules into a cell.

• ENDOCYTOSIS

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The substance dissolved in the liquid part of the
solution.

• SOLUTE

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• HYPOTONIC

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The movement of a substance from high to low
concentration without energy.

• PASSIVE TRANSPORT

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Type of membrane that allows ALL substances to
pass through it.

• PERMEABLE

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• ACTIVE TRANSPORT

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The liquid into which the solute is dissolved.

• SOLVENT

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To be in balance or in a state of equality.

• EQUILIBRIUM

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Type of membrane that allows only SOME substances
to pass through it.

• SEMI-PERMEABLE
• (selectively)

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More solute, less water inside the cell than the
environment the cell is living in.

• HYPOTONIC

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A type of membrane that allows NO substances to
pass through it.

• IMPERMEABLE

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How does a water molecule enter and exit a cell?

• OSMOSIS

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How do most sugar molecules enter and exit a cell?

• ACTIVE TRANSPORT

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• ACTIVE TRANSPORT

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More solute, less water outside the cell than
inside the cell.

• HYPERTONIC

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Can you identify two differences between active
and passive transport?

• TYPE OF SUBSTANCES
• CONCENTRATION GRADIENT
• ENERGY YES or NO?

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Can you identify the methods of transport that do
NOT require energy by the cell?

• PASSIVE TRANSPORT
• DIFFUSION
• OSMOSIS

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• ISOTONIC

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What factors can control the rate of diffusion?

• TYPE OF MEMBRANE
• CONCENTRATION GRADIENT
• SIZE OF SUBSTANCE
• TEMPERATURE
• ACTIVITY LEVEL

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In what direction do substances naturally travel?

• HIGH TO LOW CONCENTRATION

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What cell structure controls diffusion and
osmosis?

• CELL MEMBRANE

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Your life depends on . . .

• Active Transport!