Unit 2 Q 2

Facilitated diffusion is the process by which substances are transported into the cell by the proteins in the cell membrane . The cells membrane are discriminating in what they allow to enter , for instance large molecules resembling glucose can not enter the cell except it is assist because the cell will not allow it to pass . The comparable goes for some charged particles that are not lipid water-soluble since the body knows that the membrane are selective , it has provided itself with another gist of transporting all these special materials that are very important to the flow of the cellsThe facilitated diffusion does not require energy like the brisk transport , the substance to be transported will bind to the out surface of the protein , this binding will cause reversible conformational changes in the structure of the protein .

Then , the substance will be delivered into the inner of the cell while the protein will change its shape to sequester its original positionREFERENCEFacilitated Diffusion (1997 ) HYPERLINK hypertext transfer protocol /www .vivo .colostate .edu /hbooks /cmb /cells /pmemb /diffusion_f .html http /www .vivo .colostate .edu /hbooks /cmb /cells /pmemb /diffusion_f .html recuperation Date : May 24 , 2008Facilitated Diffusion (2008 ) HYPERLINK http /www .bio-medicine .org /biology-definition /Facilitated_diffusion http /www .bio-medicine .org /biology-definition /Facilitated_diffusion Retrieval Date : May 24 ,2008...If you want to get a full essay, order it on our website: Orderessay

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