Types of Transport 5.0 / 5 based on 2 ratings ? BiologyCellular processesA2/A-levelWJEC Created by: charleyCreated on: 13-08-18 17:10 Diffusion Passive movement of molecules down a concentration gradient 1 of 12 Facilitated Diffusion Passive movement of molecules down a concentration gradient via transport proteins 2 of 12 Channel Proteins Proteins lined with polar groups allowing ions to pass through 3 of 12 Carrier Proteins Proteins that contain a binding site for larger molecules to attach to 4 of 12 Active Transport Active movement of molecules against a concentration gradient via carrier proteins. Requires ATP. 5 of 12 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 6 of 12 Co-transport A type of facilitated diffusion that brings molecules and ions into cells on the same transport protein 7 of 12 Endocytosis Material is engulfed, forming a vesicle 8 of 12 Phagocytosis The uptake of solid material thats too large to diffuse in 9 of 12 Pinocytosis The uptake of liquid 10 of 12 Exocytosis The process by which substances leave the cell 11 of 12 Bulk Transport The active process of endocytosis and exocytosis 12 of 12
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