The substance which is not reabsorbed into the blood capillaries surrounding the tubule of a nephron is mainly:(a) glucose   (b) amino acid   (c) urea   (d) water

(c) urea

During glomerular filtration, the substances like glucose, salts, amino acids, urea, water, etc present in the blood pass into Bowman's capsule and then enter the renal tubule of the nephron where the necessary materials such as glucose, amino acids, salts and water, are reabsorbed into the blood through blood capillaries surrounding the nephron, and only the waste substances like urea and excess water remain behind in the tubule.