Function of Loop of Henle

Q.

The part of the nephron impermeable to water is

1. Distal tubule

2. Collecting duct

3. Proximal tubule

4. Ascending limb of Henle’s loop

Q. If Henle's loop were absent from mammalian nephron, which of the following is to be expected?

1. There will be no urine formation
2. There will be hardly any change in the quality and quantity of urine formed
3. The urine will be more concentrated
4. More amount of water and electrolytes will be present in urine

Q.

Give two conditions under which cathode rays are produced.

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. Consider that there are two different types of nephrons. Nephron A has proximal convoluted tubule, Henle’s loop, distal convoluted tubule and collecting duct. Nephron B has the same segments except for Henle’s loop. Which among the following will be expected?

1. Urine formed in nephron B is more dilute
2. Urine formed in nephron B is more concentrated
3. No urine is formed in nephron B
4. None of the above

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. 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. Which of the following is not true about the loop of Henle ?

1. Primary function of the loop of Henle is recovery of water and sodium chloride from the urine.
2. The descending loop of Henle is relatively impermeable to solutes and permeable to water.
3. The ascending loop of Henle is permeable to solutes and is impermeable to water.
4. The filtrate that moves out of the loop of Henle, is hyperosmotic compared to what entered the loop.

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. Filtration of the blood plasma in the human body takes place in

1. Malpighian tubules
2. Glomerulus and the Bowman’s capsule of the nephron
3. Nephridia
4. Collecting tubule of the nephron

Q. Consider that there are two different types of nephrons. Nephron A has proximal convoluted tubule, Henle’s loop, distal convoluted tubule and collecting duct. Nephron B has the same segments except for Henle’s loop. Which among the following will be expected?

1. Urine formed in nephron B is more dilute
2. Urine formed in nephron B is more concentrated
3. No urine is formed in nephron B
4. None of the above

Q.

The part of the nephron impermeable to water is

1. Proximal tubule

2. Ascending limb of Henle’s loop

3. Distal tubule

4. Collecting duct

Q. Match the following:

$\begin{array}{cc}\text{1. Proximal convoluted tubule}& \text{i) Filtrate is hypotonic as it moves}\\ \text{2. Descending arm of Henle’s loop}& \text{ii) Filtrate is isotonic as it passes}\\ \text{3. Ascending arm of Henle’s loop}& \text{iii) Filtrate is hypertonic as it moves}\end{array}$

1. 1 - i; 2 - ii; 3 - iii
2. 1 - ii; 2 - iii; 3 - i
3. 1 - iii; 2 - ii; 3 - i
4. 1 - i; 2 - iii; 3 - iii