Final answer:
The correct answer to the question on salicylic acid reabsorption in urine is d) Basic, lipid. Salicylic acid is less likely to be reabsorbed in alkaline conditions due to increased ionization, leading to decreased lipid solubility.
Step-by-step explanation:
In alkaline urine, less salicylic acid will be reabsorbed because it will not be lipid soluble. The correct answer is d) Basic, lipid. This is because salicylic acid is a weak acid and becomes more ionized in an alkaline (basic) environment, making it less lipid soluble and therefore less likely to be reabsorbed by renal tubules. Urea is highly water soluble, while uric acid is less soluble in water. The network of blood vessels in the kidney is responsible for filtration and reabsorption, with the loop of Henle being a critical site for these processes wherein the permeability to water and solutes changes in the descending and ascending limbs, respectively.