BIO152H5 Study Guide - Heat Capacity, Ionic Compound, Chemical Polarity
Document Summary
Structure and function are closely related, and correlated at all levels of biological organization. Covalent bonds are sharing a pair of valence electrons. Hydrogen bonds: attraction between polar covalent molecules: polar covalent (one atom is more electronegative): they don"t share electrons equally. Carbohydrates are macromolecules that include sugars and polymers of sugars, the simplest of which is monosaccharides which are single sugars, carbohydrates are polysaccharides are polymers composed of many sugar building blocks. Lipids do not form polymers, they have little to no affinity for water, they are hydrophobic because they consist mainly of hydrocarbons which are non-polar, and come in the form of fats, phospholipids, and steroids. Proteins consist of one or more polypeptides, and account for more than 50% of dry mass of most cells, the functions of proteins include: structural support, storage, Transport, cellular communications, movement, defense against foreign substances.
