BIOL2000 Chapter Notes - Chapter 3: Protein Folding, Alpha Helix, Ionic Bonding
Document Summary
Prebiotic soup- chemical evolution began from reacants of. There were also amino acids found in metorites ( amino acid- building block of protein) Amino acids- make up protiens from 20 different building blocks. Has a common core structure of a central carbon atom. Bonded w four things: h a hydrogen atom, nh2 an amino functional group, cooh- a carboxyl functional group, a distinctive r-group (side chain) The combo of amino and carboxyl group allows the amino group to act as base, the carboxyl group to be acidic and loose the h . which helps amino acids stay in solution and affects the chemical reactivity. Often contain carboxyl, sulfhydryl, hydroxyl, or amino functional groups. If side chain has oxygen atom it is uncharged polar. Monomer: a molecular subunit such as amino acid, nucleotide, or sugar. Polymer: a large number of monomers bond together. Amino acid monomers polymerize to form protiens. Macromolecule: large molecule made up of smaller molecule.
