Biochemistry acs exam 1 - Study guides, Class notes & Summaries

ACS Biochemistry Practice Final, FGCU, Beharry, Coticone Exam Questions and Verified Solutions 2024 1. A weak acid, HA, has a pKa of 4.11. a) At pH 7.11, what will the ratio of conjugate base to acid be? (Henderson-Hasselbach equation: pH=pKa + log [A-]/[HA]) b) Based on answer to "a," is there more HA or A- at that pH? c) At pH 2.11, what will the ratio of conjugate base to acid be? d) Based on answer to "c," is there more HA or A- at that pH? e) At pH 4.11, what will the ratio of ...

ACS Biochemistry Final Exam Questions and Correct Solutions 2024 pKa (chapter 3) - Answer -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) - Answer -compounds with functional group C-S-CoA-C (eg, in acetyl-CoA) zwitterion (3) - Answer -dipolar ion with both positive and negative groups but overall neutral charge; can act as either an acid or base Isoelectric point (pI) (chapter 3) - Answer -the ch...

ACS BIOCHEMISTRY 360 FINAL EXAM REVIEW KEY 2023.WITH 100% CORRECT ANSWERS AND EXPLANATIONS 1. Which of the following statements about collagen is correct? a) Collagen contains a high proportion of hydroxylated proline residues. b) Collagen is a globular, intracellular protein. c) Post-translational modification of collagen involves vitamin A. d) The structure of collagen consists of a superhelix of three α helices twisted together Explanation – collagen has α chains, NOT helices. Eac...

Biochemistry ACS Final Exam with Correct Solutions 2024 What is the D configuration of a sugar in a Fisher projection? - Answer -chyrol carbon furthest from the carboxyl group hydroxyl on right What is the L configuration of a sugar in a Fisher projection? - Answer -hydroxyl on left What is the difference between glycogen and amylopectin? - Answer -glycogen- has branches about every 10 residues (more highly branched) amylopectin- has branches about every 25 What is amylose made up of? -...

ACS BIOCHEMISTRY EXAM QUESTIONS AND ANSWERS Henderson-Hasselbach Equation - answerpH = pKa + log ([A-] / [HA]) FMOC Chemical Synthesis - answerUsed 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) - answerChanges soluble protein to solid precipitate. Protein precipitates when the charges on the protein match the charges in the solution. Size-Exclusion Chromatography - answerSeparates sample b...

Biochemistry ACS Final Exam With Complete Solutions 2024 What is the D configuration of a sugar in a Fisher projection? - answerchyrol carbon furthest from the carboxyl group hydroxyl on right What is the L configuration of a sugar in a Fisher projection? - answerhydroxyl on left What is the difference between glycogen and amylopectin? - answerglycogen- has branches about every 10 residues (more highly branched) amylopectin- has branches about every 25 What is amylose made up of? - answ...

ACS BIOCHEMISTRY EXAM QUESTIONS AND ANSWERS Henderson-Hasselbach Equation - answerpH = pKa + log ([A-] / [HA]) FMOC Chemical Synthesis - answerUsed 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) - answerChanges soluble protein to solid precipitate. Protein precipitates when the charges on the protein match the charges in the solution. Size-Exclusion Chromatography - answerSeparates sample b...

Biochemistry ACS Final Exam With Complete Solutions 2024 What is the D configuration of a sugar in a Fisher projection? - answerchyrol carbon furthest from the carboxyl group hydroxyl on right What is the L configuration of a sugar in a Fisher projection? - answerhydroxyl on left What is the difference between glycogen and amylopectin? - answerglycogen- has branches about every 10 residues (more highly branched) amylopectin- has branches about every 25 What is amylose made up of? - answ...

BIOCHEMISTRY ACS EXAM QUESTIONS WITH 100% CORRECT ANSWERS Unfolds proteins and gives them uniform negative charge. - answerSDS Reacts with the N-terminus of the protein to produce a 2,4-dinitrophenol derivative that labels the first residue. Can repeat hydrolysis to determine sequential amino acids - answerFDNB Reduces disulfide bonds. - answerDTT Adds carboxymethyl group on free -SH groups. Blocks disulfide bonding. - answerIodoacetate Bonds between two -SH groups that form between 2°...

BIOCHEMISTRY ACS EXAM QUESTIONS WITH 100% CORRECT ANSWERS Unfolds proteins and gives them uniform negative charge. - answerSDS Reacts with the N-terminus of the protein to produce a 2,4-dinitrophenol derivative that labels the first residue. Can repeat hydrolysis to determine sequential amino acids - answerFDNB Reduces disulfide bonds. - answerDTT Adds carboxymethyl group on free -SH groups. Blocks disulfide bonding. - answerIodoacetate Bonds between two -SH groups that form between 2°...