Funtions Of Individual Parts Of A Nephron ( Excretory Products And Their Elimination)

Question 1

PCT is lined by?

Answer 1

Simple cuboidal brush-bordered epithelium

Question 2

PCT reabsorption functions

Answer 2

P nearly all of essential nutrients and 70-80% of electrolytes and water are reabsorbed here

Question 3

PCT maintains pH and ionic balance of body fluids by?

Answer 3

Selective secretion of H+ and ammonia into the filtrate and absorption of HCO3- from the filtrate

Question 4

Reabsorption is…….. in its ascending limb.

Answer 4

minimum

Question 5

Ascending limb of loop of henle plays an important role in?

Answer 5

maintenance of high osmolarity of medullary interstitial fluid

Question 6

Descending limb of loop of henle is …….. to water, but ……… to electrolytes . This ………. the filtrate as it moves down

Answer 6

Permeable
impermeable t
Concentrates

Question 7

The ascending limb is……… to water but allows transport of…….. actively or passively. Therefore, as the concentrated filtrate pass upward, it gets ………due to the passage of…….. to the medullary fluid.

Answer 7

impermeable
electrolytes
diluted
electrolytes

Question 8

Conditional reabsorption of….
and…. takes place in DCT

Answer 8

Na+
water

Question 9

DCT is also capable of reabsorption
of …… and selective secretion of….. and …….. and …….to maintain the pH and sodium-potassium balance in blood.

Answer 9

HCO3 –
hydrogen
potassium ions
NH3

Question 10

Collecting Duct extends from where to where

Answer 10

the cortex of the kidney to the inner parts of the medulla.

Question 11

Large amounts of water could be……. from collecting duct to produce a……. urine.

Answer 11

reabsorbed
concentrated

Question 12

The ……. allows passage of small amounts of urea into the medullary interstitium to keep up the………

Answer 12

collecting duct
osmolarity

Question 13

The collecting duct also plays a role in the maintenance of… and……. of blood by the selective secretion of H+ and K+ ions

Answer 13

pH
ionic balance