Which of the following statements about the nephron is accurate?

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Sodium is actively reabsorbed in the descending limb of the loop of Henle.Between 60% and 70% of the glomerular filtrate is reabsorbed in the proximal tubule.Water is reabsorbed in the ascending limb of the loop of Henle.The fluid entering the distal convoluted tubule is more concentrated than its surrounding environment.

Explanation

Sodium is not actively reabsorbed in the descending limb of the loop of Henle. The majority of the glomerular filtrate, approximately 60 to 70%, is reabsorbed in the proximal tubule. Water reabsorption does not occur in the ascending limb, which is impermeable to water. Additionally, the filtrate reaching the distal convoluted tubule is typically hypotonic compared to the surrounding interstitial fluid.