Juxtaglomerular apparatus is made up of
Important Questions on Excretory Products and Their Elimination
The given part belong to which system?
(a) Kidneys (b) Ureters (c) Urinary bladder
Draw a neat labelled diagram of the system.
Reason (R): The increased flow of blood into the atria.
The correct option among the following is:
Consider the following three statements with blanks. Which of the options correctly fills all the blanks in these statements?
a) The ascending limb of loop of Henle's is impermeable to __(1)__ but allows transport of __(2)__
b) __(3)__ and __(4)__ play a significant role in producing a concentrated urine.
c) A fall in the glomerular blood flow/glomerular blood pressure / GFR gets active at the JG cells to release __(5)__
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:
Few statements about water reabsorption in kidney are given below:
i. Decreased production of anti-diuretic hormone.
ii. Increased osmolality of plasma.
iii. Decreased permeability of kidney tubule epithelium to water.
iv. Increased reabsorption of water.
The consequence(s) of dehydration in an otherwise healthy human would be
Study the following table
| S.No | Part of nephron | Lined by | Substances reabsorbed |
| I) | Proximal convoluted tubule | Simple squamous epithelium | Glucose, amino acids, water |
| II) | Descending limb of loop of Henle | Squamous epithelium (thin layer) | Water |
| III) | Ascending limb of loop of Henle | Squamous epithelium (lower thin and upper thick) | Water, electrolytes |
| IV) | Distal convoluted tubule | Cuboidal epithelium | Water, |
Among the above, Wrong combination are
Study the following table.
| Part of Nephron | Location | Function | |
| A | Malpighian body | Cortex | Filtering blood |
| B | Proximal convoluted tubule | Cortex | Absorption of useful substances |
| C | Distal convoluted tubule | Medulla | Absorption of urea |
| D | Collecting duct | Only Cortex | Collection of urine |
Identify the correct combinations among the above.
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
