Multiple choice What is the function of Bowman's capsule? It reabsorbs glucose, amino acids, phosphate, potassium, urea and other organic solutes from the filtrate. It is the functional unit of kidney. It filters blood to form urine. It makes urine more concentrated. Reveal answer Fill a bubble to check yourself C Correct answer Explanation Bowman's capsule performs the first step in the filtration of blood to form urine. It allows liquids and small solid particles to pass through but prevents larger structures (e.g. blood cells) from passing through.