4- interactions between cells and the extracellular environment

4- interactions between cells and the extracellular environment

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Click to edit Master subtitle style Lecturer: Dr. R. Ahangari University of Central Florida, Orlando Human Physiology by S.I. Fox and Transport across cell membrane- A
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Click to edit Master subtitle style Body fluids In most individuals, approximately 67% of the total weight is water within cells, in
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Click to edit Master subtitle style Role of the blood: -transports oxygen from the longs to the body cells, and CO2 from the body to
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Click to edit Master subtitle style Extracellular matrix The extracellular environment fluids, as interstitial, or tissue, fluid, within a matrix of
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Click to edit Master subtitle style Categories of transport across the plasma membrane The mechanisms involved in the transport of molecules and ions through the cell membrane may be divided into two categories: 1) transport that requires the action of specific carrier proteins in the membrane, called carrier-mediated transport, Carrier-mediated transport may be further subdivided into: a. facilitated diffusion b. active transport 2)transport through the membrane that is not carrier mediated. It involves the simple diffusion of ions, lipid-soluble molecules, and water through the membrane, Osmosis is the net diffusion of solvent (water) through a membrane.
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4- interactions between cells and the extracellular environment

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