Final answer:
Most solutes that were filtered in the glomerulus are reabsorbed in the renal tubules through mechanisms like active transport, simple diffusion, and facilitated diffusion. The reabsorbed solutes and water are returned to the circulation through the peritubular capillaries.
Step-by-step explanation:
Most solutes that were filtered in the glomerulus are reabsorbed in the renal tubules. This reabsorption occurs mainly in the proximal convoluted tubule (PCT), loop of Henle, and the distal convoluted tubule (DCT). Different mechanisms like active transport, simple diffusion, and facilitated diffusion are involved in the reabsorption process. The reabsorbed solutes and water are returned to the circulation through the peritubular capillaries.