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Within cells the two main forms of cellular exchange are diffusion and osmosis. These two terms can sometimes be mixed up as they both mean "the movement of molecules of a substance from an area of high...

Eutrophication is a result of nitrogen rich compounds leeching from farm land fertilizer/manure or other pollution methods to the river water ecosystem. The all of a sudden nitrogen rich environment in the r...

A protein's function is determined by its structure. The structure of a protein can be described in four different ways, the most basic of which is the primary structure. Proteins are made up of polypeptide ...

A saccharide composed of two sugars. For example lactose is a disaccharide as it contains glucose ( a monosaccharide) and galactose (another monosaccharide) connected by a glycosidic bond

A peptide is usually a short sequence of amino acids. Proteins are much larger structures, also comprised of amino acids, but having different levels of organisation such as forming secondary, tertiary and q...