Select the total number of correct statements about loop of Henle:
1. Descending limb is permeable to water.
2. Descending limb is almost impermeable to electrolyte.
3. Ascending limb is impermeable to water.
4. It allows the transport of electrolyte only actively.
5. At the tip of loop of Henle, the concentration of filtrate is 1200 m osmol/L.
6. It helps in the maintenance of high osmolarity in the medullary interstitium.
Important Questions on Excretory Products and their Elimination
| Column – I | Column – II (Part | ||
| Function | Part of 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 |
Match the following ?
| List I | List II | List III | |||
| (i) | High threshold substances | (a) | Not at all reabsorbed | (p) | Creatinine |
| (ii) | Low threshold substances | (b) | Efficiently reabsorbed | (q) | Glucose |
| (iii) | Athreshold substances | (c) | Reabsorbed in very little amounts | (r) | Urea |
Reason (R): The increased flow of blood into the atria.
The correct option among the following is:
I) In embryonic stage, the interventricular septum of human heart has foramen ovale.
II) Tunica media of human artery has elastic lamina on either side.
III) Excretory organs of arachnids are coxal glands.
IV) Angiotensin II stimulates the Juxtaglomerular cells to secrete the enzyme renin.
Pick up the incorrect statements from the above:
(i) Close proximity between Henle's loop and vasa recta
(ii) Counter current mechanism
(iii) Selective secretion of and hydrogen ions in
(iv) Higher blood pressure in glomerular capillaries
Following events are associated with blood pressure regulation by the kidney.
A) Formation of Angiotensin
B) Secretion of Aldosterone
C) Fall in blood pressure
D) Reabsorption of from distal convoluted tubule
E) Release of Renin
F) Restoration of normal blood pressure
G) Conversion of Angiotensinogen to Angiotensin
H) Activation of Juxta Glomerular cells
The correct regulation sequence is
