Which region of the nephron reabsorbs the highest percentage of filtered bicarbonate?
ACollecting duct
BThick ascending limb
CDistal tubule
DProximal tubule
In your peripheral tissues and lungs, carbonic anhydrase works to control the equilibrium between carbon dioxide and carbonic acid in order to maintain proper blood pH. Through which mechanism does carbonic anhydrase exert its influence on reaction kinetics?
AChanges the delta G of the reaction
BLowers the free energy of products
CRaises the activation energy
DLowers the activation energy
ELowers the free energy of reactants
A 72-year-old female is brought to the emergency department after being found unresponsive in her garage with an open bottle of unmarked fluid. She is confused and is unable to answer questions on arrival. Her medical history is significant for Alzheimer disease, but her family says she has no medical comorbidities. Serum analysis of this patient's blood shows a pH of 7.28 with a high anion gap. The electrolyte that is most likely significantly decreased in this patient follows which of the following concentration curves across the proximal tubule of the kidney?
ACurve C
BCurve E
CCurve B
DCurve A
ECurve D
+ 7 more in the PDF
Browse all chapters