1. Reabsorption occurs when
a. Filtered solute is transported from the lumen of the renaltubule to the blood of the peritubular capillaries
b. Solute is transported from the blood of the peritubularcapillaries to the lumen of the distal convoluted tubule
c. A protein is transported across the glomerular filtrationmembrane
d. Filtered solute is transported from the glomerularcapillaries to the capsular space of the renal corpuscle
e. Solute that has not been filtered is excreted
2.Why is urine (filtrate) buffered?
a. To prevent abnormal increases respiratory rate
b. This increases bicarbonate production
c. To maintain a higher pH which is necessary to continue todrive H+ secretion
d. To prevent secretion of too much acid
e. Buffering filtrate is necessary for reabsorption of Na+
3. Water loss from the body will cause
a. Nothing as water loss does not determine solute loss.
b. Further water secretion to the renal tubule
c. Solute loss, like Na+
d. Secretion of solute like K+ to the renal tubule
e. Bicarbonate production by tubular epithelial cells
4. Water that diffuses out of the plasma and into the tissue tobecome interstitial fluid will re-enter blood circulation by wayof
a. The creation of a hydrostatic pressure gradient
b. Active diffusion using transporters back into the capillaryblood
c. Co-transport with sodium
d. Lymphatic vessels that transport fluid to veins
e. Osmosis back into large veins
5. The primary function of antidiuretic hormone is to
a. it delay urination.
b. it increase digestive absorption.
c. decrease the amount of water lost at the kidneys.
d. increase the amount of sodium lost at the kidneys.
e. decrease blood pressure.
