BCH 403 Exam 2 Questions with Complete Solutions
(T/F) Acid-base catalysis involving free protons or hydroxide ions is thermodynamically favorable because these are already in high concentrations in the cell. Correct Answer-False (T/F) The glycerophosopholipids of a membrane bilayer have been modified to contain additional double bonds. This change will likely lower the activation of adenylate cyclase by a G-protein. Correct Answer-False (T/F) To be inserted, a α-helical integral membrane protein requires at least one helix that is at least 20 residues long and is also amphipathic. Correct Answer-False (T/F) Based on the data presented in question 17, the effect of that inhibitor can also be described using the following Lineweaver-Burk plot. (Graph) Correct Answer-False (T/F) The irreversible inhibitor TPCK was critical in the identification of a histidine residue as part of the "catalytic triad" Correct Answer-True (T/F) Active primary transport requires ATP because otherwise, the ΔG of transport would be positive. Correct Answer-True
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