In order for the kidney tubules to continue to secrete hydrogen ions (H+) into the tubular filtrate, mechanisms must exist that allow the secreted hydrogen ions to be taken up (buffered) by components in the tubular filtrate.
One such mechanism is: A. Secretion of ammonia (NH3) by tubular epithelial cells that combines with the hydrogen ions to form ammonium ions (NH4+)
B. Secretion of bicarbonate ions (HCO3) into the tubular filtrate by the tubular epithelial cells
C. Secretion of phosphate ions into the tubular filtrate by the tubular epithelial cells
D. Excretion of urea into the tubular filtrate
Question 2
Which of these is a benign tumor of fat cells?
A. Adenocarcinoma
B. Lipoma
C. Liposarcoma
D. Lymphosarcoma
Major parts of a kidney
Hydronephrosis. Normal kidney (left) and kidney with hydronephrosis (right) are compared. Note the d
Hydrogen Molecule
Kidney Fluid Chemistry
Determining the order and rate constant of an irreversible first-order reaction
Orientation and structure of a nephron, the functional unit of the kidney.