Nephron Part 1

Which of the following statements is correct?

1.	The descending limb of loop of Henle is impermeable to water.
2.	The ascending limb of loop of Henle is permeable to water.
3.	The descending limb of loop of Henle is permeable to electrolytes.
4.	The ascending limb of loop of Henle is impermeable to water.

Match the items given in Column-I with those Column-II and select the correct option given below:

	Column-I (Function)		Column-II (Part of the Excretory system)
(a)	Ultrafiltration	(i)	Henle's loop
(b)	Concentration of urine	(ii)	Ureter
(c)	Transport of urine	(iii)	Urinary bladder
(d)	Storage of urine	(iv)	Malpighian corpuscle
		(v)	Proximal convoluted tubule

Options:	(a)	(b)	(c)	(d)
1.	(iv)	(v)	(ii)	(iii)
2.	(iv)	(i)	(ii)	(iii)
3.	(v)	(iv)	(i)	(ii)
4.	(v)	(iv)	(i)	(iii)

Given below are statements:

Statement I:	In the nephron, the descending limb of loop of Henle is impermeable to water and permeable to electrolytes.
Statement II:	The proximal convoluted tubule is lined by simple columnar brush border epithelium and increases the surface area for reabsorption.

In the light of the above statements, choose the correct answer from the options given below:


1. Both Statement I and Statement II are False
2. Statement I is True but Statement II is False
3. Statement I is False but Statement II is True
4. Both Statement I and Statement II are True

Choose the correct statement given below regarding juxta medullary nephron.

1.	Renal corpuscle of juxta medullary nephron lies in the outer portion of the renal medulla.
2.	Loop of Henle of juxta medullary nephron runs deep into medulla.
3.	Juxta medullary nephrons outnumber the cortical nephrons.
4.	Juxta medullary nephrons are located in the columns of Bertini.