BCH Exam 1 Questions with Complete Solutions

Which of the following is not a serine protease? A) Chymotrypsin B) Trypsin C) Elastase D) Collagenase Correct Answer-Collagenase If trying to find potential life-hosting worlds, which elements would you expect astrophysicists are looking for in highest abundance in these distant solar systems? Correct Answer-O, C, N, H The strongest non-covalent intermolecuar forces are: Correct Answer-Ionic Interactions Which of the following assembles by association of multiple protofilaments? A) Myosin B) Actin C) Tubulin D) Keratin E) Collagen Correct Answer-Tubulin What is the sign of the entropy change when dry ice sublimates? Correct Answer-Positive Which of the following proteins contain a high percentage of a modified Pro residue? A) Keratin B) Collagen C) Tubulin D) Actin E) Myosin Correct Answer-Collagen In SDS gel electrophoresis A) proteins are separated based on their molecular weight B) only proteins with aromatic amino acids may be separated C) the largest proteins move the farthest D) all of the above Correct Answer-A (proteins are