UNE Medical Biochemistry Midterm Already Graded A

UNE Medical Biochemistry Midterm Already Graded A Which of the following proteins is likely to have quaternary structure? A multimeric protein that contains multiple peptide chains Prosthetic groups are complex nonprotein molecules that participate in catalysis by providing functional groups that form a covalent intermediate between the enzyme and the substrate. Which of the following is an example of a coenzyme or cofactor that participates in a covalent catalysis reaction? Pyridoxal phosphate Which of the following best describes a protein domain? A section of a protein structure sufficient to perform a particular chemical or physical task Cleavage of fructose 1,6 bisphosphate to dihydroxyacetone and Glyceraldehyde 3-phosphate involves the breaking of a carbon-carbon bond through a process other than oxidation or hydrolysis. This is achieved by what class of enzymes? Lyase A 55-year old man is brought to the emergency room with a chief complaint of chest pain and tingling in his left arm. Elevation of which of the following enzymes in circulation would be most indicative of myocardial infarction? Troponin Allosteric activators of hemoglobin will increase substrate binding through which of the following mechanisms? Binding the protein, and keeping it in the "R" conformation Which of the following best describes tertiary structure? Interactions between alpha helices and beta sheets to form a domain How do most enzymes reduce the activation energy needed to move a reaction forward? providing an active site most complementary to the transition state Domains are common structural elements that retain a particular function within the protein. Which of the following is an example of a protein domain? An arrangement of beta-strands connected by alpha-helices (beta-alpha-beta-alpha) Which amino acid would not be commonly found in the middle of an alpha-helical domain? Proline Which of the following is a true statement with regards to the malate-aspartate shuttle system? Generates 2.5 molecules of ATP in mitochondria per each NADH from glycolysis. Complex II (Succinate Q-reductase) is not considered part of the process of oxidative phosphorylation because it is unable to do which of the following activities? Pump protons from the mitochondrial matrix into the inter membrane space. Succinate is a substrate for which complex in the electron transport cha