Types of Transport

  • Created by: charley
  • Created on: 13-08-18 17:10
Diffusion
Passive movement of molecules down a concentration gradient
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Facilitated Diffusion
Passive movement of molecules down a concentration gradient via transport proteins
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Channel Proteins
Proteins lined with polar groups allowing ions to pass through
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Carrier Proteins
Proteins that contain a binding site for larger molecules to attach to
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Active Transport
Active movement of molecules against a concentration gradient via carrier proteins. Requires ATP.
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Factors affecting the rate of diffusion (6)
the concentration gradient, thickness of exchange surface, surface area of the membrane, size of the molecule, nature of the molecule and temperature
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Co-transport
A type of facilitated diffusion that brings molecules and ions into cells on the same transport protein
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Endocytosis
Material is engulfed, forming a vesicle
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Phagocytosis
The uptake of solid material thats too large to diffuse in
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Pinocytosis
The uptake of liquid
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Exocytosis
The process by which substances leave the cell
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Bulk Transport
The active process of endocytosis and exocytosis
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Other cards in this set

Card 2

Front

Passive movement of molecules down a concentration gradient via transport proteins

Back

Facilitated Diffusion

Card 3

Front

Proteins lined with polar groups allowing ions to pass through

Back

Preview of the back of card 3

Card 4

Front

Proteins that contain a binding site for larger molecules to attach to

Back

Preview of the back of card 4

Card 5

Front

Active movement of molecules against a concentration gradient via carrier proteins. Requires ATP.

Back

Preview of the back of card 5
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