Hepatocytes do NOT

A. Intracellular fluid: Intracellular fluid is inside the cells. Edema refers to fluid accumulation outside the cells, so this is incorrect.
B. Interstitial fluid: Edema is caused by the abnormal accumulation of fluid in the interstitial space, which is the space between cells in tissues.
C. Intracellular fluid and interstitial fluid: Edema is confined to the interstitial (extracellular) compartment, not intracellular.
D. Blood plasma: Although fluid may move from the plasma into the interstitial space, edema refers to fluid retention in tissues, not in the blood plasma.

A. Buffered hydrogen ions are excreted in urine: This process allows new bicarbonate ions to enter the plasma, helping correct acidosis.
B. Glutamine is metabolized by deamination, oxidation, and acidification: Glutamine metabolism in renal tubule cells generates ammonia and bicarbonate, contributing to acid-base balance.
C. Ammonium ions are excreted in urine: Excreting ammonium (NH₄⁺) removes H⁺ from the body and indirectly adds new bicarbonate to the plasma.
D. Bicarbonate ions are reclaimed by tubular reabsorption: This does not generate new bicarbonate-it simply prevents loss of existing bicarbonate, which is important but not a replenishing mechanism during depletion.