Answer: Yes, amino acids are filtered in the glomerulus, and yes, they are reabsorbed. The reabsorption of amino acids primarily takes place in the proximal convoluted tubule (PCT) of the nephron.
Explanation: In the kidneys, the glomerulus functions as a filtration unit where blood plasma is filtered to form urine. During this filtration process, amino acids, which are small molecules, pass through the glomerulus and enter the renal tubule as part of the filtrate. However, the body requires these amino acids for various biological functions, so they need to be reabsorbed back into the bloodstream.
The proximal convoluted tubule is the segment of the nephron responsible for the reabsorption of a significant portion of the filtered amino acids. This reabsorption is achieved through specific transporters and mechanisms that actively move amino acids from the tubular fluid back into the peritubular capillaries, ensuring that they are retained within the body and not lost in the urine.