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The top documents tagged [net movement of molecules]
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Excitable Membranes. What is an excitable membrane? Any plasma membrane that can hold a charge and propagate electrical signals
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Lecture 7 Flow of ideal liquid Viscosity Diffusion Surface Tension
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Movement into and out of cells particles such as atoms, ions and molecules are always moving in and out of the cells cells needs to take in nutrients
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FRANCESCANGELI 2014 BIOLOGY MIDTERM REVIEW. BIOLOGY REVIEW 1.These organic compounds are the main fuel supply for cellular work? Glucose (sugar)
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Cell Membranes Recall that the smallest unit of life is the cell. All cells are surrounded by a plasma membrane that is vital in various aspects of the
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Biochemistry Unit. Cells need to import needed materials into the cell and to eliminate waste materials from the cell. Nutrients like glucose, water,
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Excitable Membranes
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Membranes and Transport Unit 4. What does the Membrane Do? Support keeps cell shape Transport moves material in and out of the cell Recognition
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Active Transport
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1 Transport through cell membranes. 2 The phospholipid bilayer is a good barrier around cells, especially to water soluble molecules. However, for the
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The Plasma Membrane and Cellular Transport. Maintaining a Balance Maintain HOMEOSTASIS: internal balance Selective permeability: allows some materials
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AS Biology, Cell membranes and Transport 1 Transport through cell membranes
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