Function of Loop of Henle

Q.

The main function of Henle's loop is

1. Conservation of water

2. Passage of urine

3. Formation of urine

4. Filtration of blood

Q. The descending limb of loop of Henle of cortical nephrons is permeable to

1. $C{a}^{2+}$
2. Urea
3. $N{a}^{+}$
4. Water

Q. Which among the following statement(s) is/are true?
I. Descending limb of Henle’s loop is permeable to water.
II. Ascending limb of Henle’s loop is permeable to electrolytes.
III. Descending limb of Henle’s loop is permeable to electrolytes.
IV. Reabsorption is minimum in Henle’s ascending loop region.

1. III is true
2. I and IV are true
3. I and III are true
4. I, II and IV are true

Q. Ascending limb of loop of Henle is:

1. Permeable to both water and electrolytes
2. Permeable to water but not for electrolytes
3. Impermeable to water but not for electrolytes
4. Impermeable to both water and electrolytes

Q. In the nephron, the osmolarity of the medulla is the cortex.

1. the same as of
2. lower than that of
3. higher than that of
4. negligible, like in

Q.

Fill in the gaps:

(a) Ascending limb of Henle’s loop is ____________to water whereas the descending limb is___________to it.

(b) Reabsorption of water from distal parts of the tubules is facilitated by hormone____________.

(c) Dialysis fluid contains all the constituents as in plasma except ________.

(d) A healthy adult human excretes (on an average) _______ gm of urea/day.

Q.

What is the difference between cartical nephrons and medullary nephrons?

Q. The primary function of the loop of Henle is the recovery of water and sodium chloride from the urine.

1. True
2. False

Q. The process of maintenance of constant osmotic pressure in fluids of organism called osmoregulation, is helpful to

1. Retain excess water.
2. Retain excess salts and water.
3. Control over the concentration of water and salt in the body.
4. Maintenance of the properties of cell membrane.