what type of inhibition is shown and where does the inhibitor bind to the enzyme?
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- QUESTION 10 UDP-glucuronosyltransferase enzymes bind the organic compound UDP-glucuronic acid (UDP-GA) in order to catalyse the transfer of a glucuronic acid group from UDP-GA to a drug molecule, releasing UDP from the active site as a product. UDP is then regenerated by the activity of another enzyme. What terms could be used to describe UDP-GA?QUESTION 5 Chymotrypsin is a pancreatic digestive enzyme that is inactive until it is secreted into the intestines, where it is hydrolyzed by the protease Trypsin. One of the fragments that results from this hydrolysis is the active form. This form of enzyme regulation is: Competitive activation O Allosteric inhibition Covalent modification O O Zymogen activation Allosteric activationQUESTION 20 Trypsin digestion of the peptide sequence A2-P2-M3-E4-R5-G6-F7-Hg-Ag-I10-A11-H12-T13-Y14-G15-P16 results peptide fragment(s). in To elute the His-tag protein from the nickel agarose column, the elution buffer contains a high concentration of Chymotrypsin cleaves the N-terminus side of Phe, Tyr, and Trp. True O False
- QUESTION 14 There are two possible mutations in spike protein; G76V and V180G. Which of these two mutations is less likely to occur, from protein structural considerations. G76V V180G O OQUESTION 10 Select a property that does not belong to allosteric enzymes. They conform to hyperbolic Michaelis-Menten kinetics They may have binding sites for regulatory molecules that are separate from active sites They tend to have a signmoidal curve of rate versus [S] They undergo conformation changes as a result of modulator binding.QUESTION 10 A patient is receiving morphine sulfate intravenously via a patient controlled analgesia (PCA) pump. The concentration of the solution is 15 mg/mL and is being infused at a rate of 0.1 mL/h. The patient may access a 2-mg bolus dose every hour for breakthrough pain and is currently using an average of 8 doses per day. The patient's caregiver requests that the patient be converted to oxycodone oral tablets given every 4 hours. Calculate the appropriate dose of oral oxycodone using the dosing tablets used in class. Round to the tenths place and use the appropriate units.
- QUESTION 16 Peptidyl transferase activity (peptide bond enzyme activity) is associated with what site in the ribosome? E P A XQuestion 106 Methicillin cannot be destroyed by because O bacterial vanases; becasue it has a postive charge, the bacterial enzyme cannot attach to it O bacterial gyrase; as it is the wrong shape to be destroyed by gyrase heat; it has many disulfide bridges O bacterial beta-lactamases; it cannot fit into the active site of bacterial beta-lactamasesQuestion 15 The GroES subunit has 14 identical 549-residue subunits arranged in two stacked rings with 7 subunits eac True O False
- Question 17 O-linked oligosaccharides are commonly attached to the -OH group of O ribose tyrosine O lysine threonineQuestion 5 An a-helix has the sequence: NH3-Ser-Glu-Gly-Asp-Trp-Gln-Leu-His-Val-Phe-Ala-Lys-Val-Glu- COO-. The carbonyl oxygen (in the peptide bond) of the W5 residue is hydrogen bonded to the amide nitrogen of H8 E2 O V9 O S1QUESTION 22 When the final product of a series of enzymatically-catalyzed reactions binds to the first enzyme in the pathway to limit its production, it generally uses ___ because the structure of this final product is generally not similar to that of any of the enzyme's normal substrates. Allosteric activation Zymogen activation Covalent modification Competitive inhibition Allosteric inhibition