List the three processes involved in the formation of urine in order.
1)tubular secretion
2)tubular reabsorption
3)glomerular filtration
A) 1, 2, 3
B) 3, 2, 1
C) 1, 3, 2
D) 2, 3, 1
E) 2, 1, 3

Question

Quizplus · Accepted Answer

Glomerular filtration is the first step in urine formation, where the blood is filtered through the glomerulus into the Bowman's capsule. Then, the filtrate passes through the renal tubules where tubular reabsorption takes place, and the essential substances are reabsorbed back into the blood. The waste and excess substances, which were not reabsorbed, are then secreted into the tubules through tubular secretion, and the final product is urine. Therefore, the correct order is 3, 2, 1.

List the Three Processes Involved in the Formation of Urine