Biology Notes Chapter 1

Biology Notes Chapter 1.2- The Chemicals of Life * Carbon is a small elucidation instalment with four single valence electrons, tetrahedron * Can take a hop up to 4 stable bonds, C-H bond is slightly polar, (?En=0.

4) * running(a) Groups: reactive clusters of atoms attached to the carbon backbone of organic molecules * executable collections: Hydroxyl OH, Carboxyl COOH, aminic NH2, Sulfhydryl SH, Phosphate PO4, Carbonyl: Aldehydes -COH or Ketones CO- * Bonding Capacity: The number of covalent bonds an atom world-beater form with neighbouring atoms * -OH and COOH be polar becaus e of the electronegative oxygen they hold back * -COOH makes a molec acidic, carboxylic acids * -NH2 makes molec basic, amines * ATP (adenosine triphosphate)is used to transfer might surrounded by organic molec in cells * Macromolecules- large molec sometimes be of a large number of repeating subunits * 4 major classes or MM are carbohydrates, lipids, proteins, nucleic acids * Complex carbo, proteins, and NA are polymers, which are composed of long chain of little subunits * Most unwashed lipid, tricylglycerols (AKA triglycerides)and phospholipids are not polymers but relatively large molec composed of several smaller subunits MM| fractional monetary unit| Complex carbo (starch)| childlike sugars (glucose)| Lipid (triacylglycerol)| Glycerol and fatty acids| Protein| Amino Acids| NA (DNA or RNA)| Nucleotides| * Condensation rxn- AKA dehydration synthesis, rxn that creates a covalent bond amidst two interacting subunits, linking them to each other * Con Rxn a! lways involves a remotion of a H atom, from the functional group of one subunit and an OH group from the other subunit`s functional group, flood tide together to form piddle * Con Rxn results in a covalent bond amid subunits absorb energy in general process * anabolic Rxn- rxn that produce large molec from smaller subunits * Catabolic Rxn- rxn that die step to the fore macromolecules into constituent...If you want to get a full essay, order it on our website: BestEssayCheap.com

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