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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...

Charged or polar molecules such as salts, sugars and amino acids dissolve readily in water and so are called hydrophilic ("water loving"). Uncharged or non-polar molecules such as lipids do not dis...

Completing the square is a process used to put a quadratic curve into a particularly nice form. The form we want is y(x) = r(x+s)^2 + t for some numbers r,s, and t. A 'general' quadratic we would expect to b...

Economic income and Gross Domestic Produce (GDP) is often a very useful indicator of vulnerability of an institution (may that be a country, communtiy or household) to a natural disaster. Economic income can...