BB 450 Exam 2 Questions And Answers

BB 450 Exam 2 Questions And Answers Chymotrypsin: - ANS-has an S1 pocket that determines specificity of protease action Attack by the alkoxide ion on the carbonyl carbon of the substrate of a serine protease causes - ANSWith respect to serine proteases, - ANS-a reaction intermediate is stabilized in the oxyanion hole The S1 pocket of serine proteases - ANS--is where the proper substrate binds -is near the catalytic triad determines which amino acid side chain is bound With respect to aspartyl proteases, - ANS-they use an activated hydroxyl made from water With respect to restriction enzymes - ANS-they act by cutting DNA at specific nucleotide sequences With respect to ATCase, - ANSWith respect to control of enzymatic catalysis, - ANS-covalent modification includes phosphorylation and breaking of peptide bonds With respect to Warfarin, - ANS-it acts by inhibiting the recycling of vitamin K With respect to activation of proteases - ANS-zymogens are inactive forms With respect to proteases affecting smokers, - ANS-overly active elastase leads to emphysema With respect to blood clotting, - ANSWith respect to carbohydrate nomenclature, - ANS-diastereomers can differ in the configuration of more than one carbon With respect to cyclization of sugars - ANS--the anomeric carbon is the one that had the keto or aldo group -it is reversible -it is not reversible if they are made into glycosides With respect to the structure of glucose within sucrose, the orientation of the four hydroxyl groups (starting with the anomeric one and moving clockwise) is - ANS-down-down-up-down With respect to disaccharides - AN