Question

Part of nephron that opens into collecting duct is
(a)DCT
(b)Henle's loop
(c)Glomeruli
(d)Bowman's capsule

Answer 1

Hint: The part of the nephron which opens into the collection duct is located between Henle 's loop and the collecting tubule. While this section is the shortest segment of the nephron, spanning just around 5 mm in length in humans, it plays a critical role in a number of homeostatic processes including reabsorption of sodium chloride, potassium secretion, and regulation of calcium and magnesium.

Complete answer:
The kidney's structural and functional structure is the nephron. Its body is divided into the renal corpuscle, the proximal tubule (PCT), the loop of Henle and the distal tubule (DCT). Many nephron distal convoluted tubules open into a straight tube called a collecting duct. Therefore DCT is a part of the nephron which opens up to collecting duct.

Additional Information: Each nephron consists of the following components:
Bowman's capsule is the first component of the nephron that initially filters blood (to form filtrate).
The proximal convoluted tubule is the folded structure attached to the capsule of the Bowman, where selective reabsorption takes place.
Henle's Loop is a selectively permeable loop descending into the medulla and creating a salt gradient. The primary role of Henle 's loop is the recovery of urine water and sodium chloride.
Distal convoluted tubule is a folded structure that is connected to the Henle loop where further selective reabsorption takes place.

So, the correct answer is, 'DCT'.

Note: The final two components of the kidney nephron are the distal convoluted tubule (DCT) and the collecting duct (CD). They have a significant role in absorbing several ions, and in reabsorbing water. Upon passing through Henle 's thick ascending limb, the filtrate reaches the distal convoluted tubule, a duct of the renal tubule situated within the cortex of the kidney that reabsorbs certain ions such as calcium, sodium, and chloride and also controls the pH of urine by secreting protons and absorbing bicarbonate. The hormone aldosterone mediates the absorption of sodium through the distal tubule.