UNE Medical Biochemistry Midterm Questions With Complete Solutions.

UNE Medical Biochemistry Midterm Questions With Complete Solutions. 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?