Question

Read the following statements about the excretory system in humans:
I. A fall in GFR can activate the JG cells to release renin.
II. ADH can also affect the kidney function by its constrictory effects on blood vessels.
III. The proximity between the Henle's loop and vasa recta, as well as the counter-current in them help in maintaining an increasing osmolarity towards the outer medullary interstitium.
IV Our lungs remove large amounts of `CO_(2)` (108 litres/day).
V. Renal calculi are the stone or insoluble mass of crystallised salts like oxalates within the kidney.
How many of these are correct?

Answer 1

Answer:

III. The proximity between the Henle's loop and vasa recta, as well as the counter-current in them help in maintaining an increasing osmolarity towards the outer medullary interstitium.

IV Our lungs remove large amounts of `CO_(2)` (108 litres/day).