What is the key property of an enzyme that increases the rate of catalysis? Answers A-E A Stabilize the transition state B Bind substrate reversibly C Change reaction equilibrium D Not consumed in reaction. E Bind specific substrate A 16-year-old male patient has gross hematuria and proteinuria and signs of impaired kidney function, together with deafness, and abnormalities in his lenses. Based on these observations you suspect a congenital defect in which of the following? Answers A - E A Fibrillin B Collagen Type III C Proteoglycans D Collagen Type I E Collagen Type IV Many small compounds and metabolites serve to regulate enzymes (thus controlling pathways as well). The number and diversity of enzymes regulated by such allosteric mechanism is very great, but virtually all such regulation is determined by which of the following common principles? Answers A - D A The allosteric binding site should be directly linked to the active site through alpha helix structure. B Allosteric modulators only activate enzymes activators. C The allosteric modulator is either the product or the substrate. D The allosteric modulator induces a shift in the protein 3D structure near the active site