D. When a solute is added to the vacuole of a ell - Select one: the osmotic pressure of the vacuole ecomes more positive . none of the above.

Discuss 1 advantage and 1 disadvantage of the slow permeability rate.

The mechanisms for producing the medullary osmotic gradient require active transport of sodium and chloride ions from the ascending limb of the loop of Henle. active transport of sodium and chloride ions from the ascending limb of the vasa recta. the ascending limb of the loop of Henle to be permeable to water. the vasa recta to be impermeable to water. both A and B

Compare the osmotic problem and the mechanism of osmotic regula-tion in freshwater and marine bony fishes.

B. Ascending loops of Henle facilitate sodium transport through the sodium-potassium ATPase channels. The osmolarity of the interstitial fluid in the medulla region of the kidney is affected by sodium-potassium ATPase activity in the loop of Henle. How will this affect urine production? Describe how a decrease in sodium-potassium ATPase activity would affect sodium transport in the ascending loop of Henle, resulting in changes in sodium concentration in the interstitial fluid, water reabsorption, and urine synthesis in nephrons.

Differentiate between osmotic and turgor pressure.