A) uses 80% of the energy requirement of the kidney B) is under control of the hormone aldosterone in the distal portions of the nephron C) is linked to the reabsorption of water, Cl-, glucose, amino acids, and urea D) requires that tubule cells expend energy E) all of these A) uses 80% of the energy requirement of the kidney B) is under control of the hormone aldosterone in the distal portions of the nephron C) is linked to the reabsorption of water, Cl-, glucose, amino acids, and urea D) requires that tubule cells expend energy E) all of these

A) cannot occur from any portion of the nephron in the absence of vasopressin B) occurs to the greatest extent in the proximal convoluted tubule C) is under vasopressin control in the proximal tubule D) is under vasopressin control in the distal and collecting tubules E) occurs to the greatest extent in the proximal convoluted tubule and is under vasopressin control in the distal and collecting tubules A) cannot occur from any portion of the nephron in the absence of vasopressin B) occurs to the greatest extent in the proximal convoluted tubule C) is under vasopressin control in the proximal tubule D) is under vasopressin control in the distal and collecting tubules E) occurs to the greatest extent in the proximal convoluted tubule and is under vasopressin control in the distal and collecting tubules

A) is actively reabsorbed in the proximal tubule B) is actively secreted in the distal and collecting tubules C) secretion is controlled by aldosterone D) is filtered, reabsorbed, and secreted in the kidney E) all of these A) is actively reabsorbed in the proximal tubule B) is actively secreted in the distal and collecting tubules C) secretion is controlled by aldosterone D) is filtered, reabsorbed, and secreted in the kidney E) all of these

A) involves transepithelial transport B) is the movement of a substance from the peritubular capillary blood into the tubular fluid C) always occurs by active transport D) involves transepithelial transport and is the movement of a substance from the peritubular capillary blood into the tubular fluid E) is the movement of a substance from the peritubular capillary blood into the tubular fluid and always occurs by active transport A) involves transepithelial transport B) is the movement of a substance from the peritubular capillary blood into the tubular fluid C) always occurs by active transport D) involves transepithelial transport and is the movement of a substance from the peritubular capillary blood into the tubular fluid E) is the movement of a substance from the peritubular capillary blood into the tubular fluid and always occurs by active transport