CHEM 2770 Midterm: CHEM 2770 40878 Exam
31 Jan 2019
School
Department
Course
Professor
Document Summary
Enter your answers on the answer sheet: there is only 1 correct answer for each question, please read each question carefully, scratch paper is available at the back of the examination. All chemical and biochemical change involves rearrangements of ____________: protons, carbon atoms, electrons, nitrogen atoms, catabolism. The dissolution of sodium chloride is driven primarily by ________________: the sodium-potassium atpase, an entropy increase, solution enthalpy changes, the hydrophobic effect, hydrogen bonding. Three amino acids of the standard 20 contain hydroxyl side-chains. They are: methionine, cysteine, proline, tryptophan, tyrosine threonine, alanine, aspartic acid, asparagine, threonine, serine, tyrosine, asparagine, proline glutamine. Which amino acid is most likely being titrated in the titration curve shown above: alanine, aspartic acid, glutamic acid, histidine, lysine. Identify the correct description of hydrogen bonding in an -helix: c=oi, c=oi, c=oi, c=oi, c=oi. Phenylisothiocyanate, proteolytic enzymes, and careful control of ph are important in. _________________: lipid analysis, amino acid analysis, protein sequencing, preventing genetic mutations, protein purification.
