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90) When an increase in hydrogen ions remains after one hour, this will lead to a(n) ________.A) decrease in bicarbonate reabsorption in the kidneysB) increased hydrogen reabsorption in the kidneysC) increase in bicarbonate secretion in the kidneysD) increase in hydrogen ion secretion from the kidneysE) failure of the kidneys to filter any more hydrogen ionsAnswer: DDiff: 6 Page Ref: 55919
91) Which of the following is an effect of the transporters in the proximal tubules?EDiff: 5 Page Ref: 55992) In the basolateral membrane of proximal tubular cells, bicarbonate is moved out of the cells by ________.EDiff: 6 Page Ref: 55993) In the proximal tubule, hydrogen ions are transported into the filtrate by ________.DDiff: 6 Page Ref: 56094) Bicarbonate crosses the apical membrane of the proximal tubule by ________.A) HCO3-/Cl-countertransportersB) Na+/HCO3-cotransportersC) conversion to carbon dioxideD) HCO3-active transportersE) Na+/HCO3-countertransportersAnswer: CDiff: 6 Page Ref: 56020
95) Which of the following transporters is NOT found embedded in the membrane of the intercalated cells of the late distal tubule and collecting ducts?BDiff: 6 Page Ref: 56096) What is the normal source of the new bicarbonate in the late distal tubule and collecting ducts?EDiff: 5 Page Ref: 56197) Under severe acidic conditions, the proximal tubules can convert ________ into bicarbonate.DDiff: 5 Page Ref: 561