Compared to urine, the filtrate that first enters a nephron tubule

Question

Quizplus · Accepted Answer

The filtrate that first enters a nephron tubule contains more salts than urine. The process of filtration in the glomerulus filters out water and small solutes, but allows larger molecules like red blood cells and proteins to remain in the blood. Urea, a waste product of protein metabolism, is also present in the filtrate. As the filtrate travels through the nephron tubules, certain molecules and ions are reabsorbed or secreted, altering the composition of the final urine.

Compared to Urine, the Filtrate That First Enters a Nephron