UNE BIOCHEMISTRY MIDTERM TESTS COMPILATION BUNDLE

How do most enzymes reduce the activation energy needed to move a reaction forward? correct answer: Providing an active site most complementary the transition state An enzyme has a mutation within the substrate binding of the coenzyme needed for covalent catalysis. Which of the following is like...

A family presents for genetic counseling. The couple has two female children who are alive and well; however, their infant son recently died in the nursery with severe hemolysis (lysis of red blood cells) and jaundice. The wife recalls she lost a brother in infancy with severe hemolysis, induced aft...

Which of the following proteins is likely to have quaternary structure? correct answer: 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 bet...

α-helices and β-sheets are primarily stabilized by which of the following interactions? correct answer: hydrogen bonding Domains are common structural elements that retain a particular function within the protein. Which of the following is an example of a protein domain? correct answer: An ar...

A 19-year-old boy is diagnosed with Creutzfeldt-Jakob disease which is caused by the introduction of an amyloid fold in the disease-causing protein. The introduction of this fold causes the protein to transition from a primarily alpha helical structure to an aggregate of mostly beta sheets. This cha...

Under low energy conditions, AMP will bind to phosphofructokinase I and glycogen phosphorylase at site unique to the active site. This enhances the activity of these enzymes. This is an example of which of the follow types of enzyme regulation? correct answer: Allosteric activation An example of...

primary structure of protein correct answer: linear sequence of amino acids in the polypeptide chain secondary structure of protein correct answer: alpha helix and beta pleated sheet alpha helix correct answer: formed when the carbonyl group of peptide bond forms a hydrogen bond with the am...

Succinate is a substrate for which complex in the electron transport chain? a.) Complex 1 (NADH-1 oxidoreductase) b.) Complex IV (Cyt c oxidase) c.) Complex V (ATP synthase) d.) complex II (Succinate-Q reductase) correct answer: Complex II (succinate-Q reductase) (D) Which of the fol...