GENERAL HISTOLOGY

Detailed explanation-1: -So, the correct answer is ‘Amino acids’.

Detailed explanation-2: -Tubular reabsorption is the process that moves solutes and water out of the filtrate and back into your bloodstream. This process is known as reabsorption, because this is the second time they have been absorbed; the first time being when they were absorbed into the bloodstream from the digestive tract after a meal.

Detailed explanation-3: -Amino acids are absorbed in the proximal convoluted tubule (PCT) of the renal tubule of a nephron through the presence of amino acid transporter molecules. Because 100% of amino acids in the renal filtrate are reabsorbed in the PCT, these molecules are not normally excreted as a part of healthy urine.

Detailed explanation-4: -Glucose, amino acids, NaCl and other essential salts are reabsorbed in the second step of urine formation i.e Tubular Reabsorption. These essential substances are filtered from blood in the first step called glomerular filtration and are reabsorbed as they are vital for body function.