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Graphic Organizer. Chapter 5

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by

johannah schilling

on 4 October 2012

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Transcript of Graphic Organizer. Chapter 5

Cell Transport Active Transport Passive Transport Diffusion movement of a substance across a cell membrane against its concentration gradient The movement of atoms or molecules
from an area of higher concentration
to an area of lower concentration involves carriers, channels, or direct diffusion through a membrane. Movement of water across the membrane. Osmosis pores in the lipid membranes of all cells. Ion Channels allows substances to cross membranes with the assistance of special transport proteins. Facilitated Diffusion Sodium-Potassium Pump. The process of moving sodium and potassium ions across the cell membrance is an active transport process involving the hydrolysis of ATP Movement of Vesicles. Endocytosis & Exocytosis substance gains entry into a cell without passing through the cell membrane. Endocytosis directs the contents of secretory vesicles out of the cell membrane and into the extracellular space. Exocysosis in which the vesicle contains large particles or cells. Phagocytosis Pinocytosis in which the vesicle contains solutions or fluids
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