Final answer:
Tubular reabsorption is the process in which substances like glucose, water, salts, ions, and amino acids are filtered out of the blood in the kidney and then reabsorbed back into the blood in the renal tubule. This process mainly occurs in the proximal convoluted tubule and the loop of Henle. Excess glucose may not be reabsorbed and is excreted in the urine.
Step-by-step explanation:
The process described in the question is called tubular reabsorption in the kidney. In this process, substances such as glucose, water, salts, ions, and amino acids that are filtered out of the blood are reabsorbed back into the blood in the renal tubule.
Reabsorption occurs mainly in the proximal convoluted tubule and the loop of Henle, where about two-thirds of the filtered salts and water and all of the filtered organic solutes are reabsorbed.
For example, glucose is reabsorbed in another part of the kidney because there are only a finite number of carrier proteins for glucose, resulting in the excess glucose not being transported and being excreted in the urine.