PACKAGE DEAL FOR ACS BIOCHEMISTRY EXAM STUDY QUESTIONS AND ANSWERS UPDATED 2024

Henderson-Hasselbach Equation - pH = pKa + log ([A-] / [HA]) FMOC Chemical Synthesis - Used in synthesis of a growing amino acid chain to a polystyrene bead. FMOC is used as a protecting group on the N-terminus. Salting Out (Purification) - Changes soluble protein to solid precipitate. Protein...

Metabolism (catabolism and anabolism) - Metabolism: sum of total chemical reactions in an organism, also the method by which cells extract and use energy from their environment. Catabolism: The process by which stored nutrients and ingested foods are converted to a usable form of energy. It prod...

What amino acids have nonpolar, aliphatic R groups? - Glycine, Alanine, Proline, Valine, Leucine, Isoleucine, Methionine What amino acids have polar, uncharged R groups? - Serine, Threonine, Cysteine, Asparagine, and Glutamine What amino acids have aromatic R groups? - Phenylalanine, Tyrosine,...

pKa (chapter 3) - measure of the tendency of a group to give up a proton (acidity); tendency decreases tenfold as pKa increases by one unit thioester bond (1) - compounds with functional group C-S-CoA-C (eg, in acetyl-CoA) zwitterion (3) - dipolar ion with both positive and negative groups but...

structures and properties of amino acids Nonpolar, Aliphatic (Hydrophobic): Glycine (Gly, G) Alanine (Ala, A) Valine (Val, V) Leucine (Leu, L) Isoleucine (Ile, I) Proline (Pro, P) Aromatic (Hydrophobic): Phenylalanine (Phe, F) Tyrosine (Tyr, Y) Tryptophan (Trp, W) Polar, Uncharged (H...

Buffer Order and Henderson Hasselbach - Water, Buffer, Salt, Base pH = pKa + log(A/HA) pKa decrease as temp increase so pH decrease Ramachandran plots - Φ = N-R ψ = C-R optimal angle to prevent steric hinderance Protein structure of a helix, B sheet, reverse turn - a: LEMARKHQ B: VICYFT...