Compare and Contrast Diffusion, Osmosis, Active Transport, Passive
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Compare and Contrast: Diffusion, Osmosis, Active Transport, Passive Transport, Endocytosis, Excytosis All of these terms are ways for molecules to get across membranes. The method that works best depends on the size of the molecule trying to get across and the concentration of similar molecules on either side of the membrane. Diffusion, Osmosis and passive transport are similar because small molecules move from areas of high concentration to areas of lower concentration. Osmosis is only different because it refers to water and passive transport is a little more different because protein channels have to be open for molecules to get across. Active transport, endocytosis and exocytosis are similar because they all require energy so they don’t rely on concentration to get molecules across the membrane. They are different because active transport gets small molecules through protein channels and endo and exo cytosis get larger molecules across by pinching off vesicles.