WorksheetsExcretory system-5 NEET
Total questions: 25
Worksheet time: 19mins
PCT is lined by
Simple cuboidal brush border epithelium
Simple Columnar epithelium
Simple squamous epithelium
Stratified squamous epithelium
In PCT _______% of electrolytes and water is reabsorbed
50-60
60-70
70-80
89-90
PCT maintains pH and ionic balance of body fluids by selective secretion of
Hydrogen ions
Ammonia
Potassium ions
All of the above
PCT maintains pH and ionic balance of body fluids by absorption of______from it.
Hydrogen ions
Ammonia
HCO3--
None of the above
________region plays significant role in maintaining high osmolarity of medullary interstitial fluid
Ascending limb of loop of Henle
Descending limb of loop of Henle
PCT
DCT
Reabsorption is minimum in
PCT
DCT
Ascending limb of loop of Henle
Descending limb of loop of Henle
_________is permeable to water but almost impermeable to electrolytes
PCT
DCT
Ascending limb of loop of Henle
Descending limb of loop of Henle
__________is impermeable to water but allows transport of electrolytes actively or passively
PCT
DCT
Ascending limb of loop of Henle
Descending limb of loop of Henle
Conditional Reabsorption of Na+ and water takes place in
PCT
DCT
Loop of Henle
Collecting duct
Collecting duct
Large amount of water is reabsorbed to produce concentrated Urine
Allows passage of small amounts of urea into medullary interstitum
Maintains pH and ionic balance of blood by selective secretion of H+ and K+ ions
All of the above
Proximity between Henle's loop and Vasa recta and also counter current in them causes osmolarity_______mOsmol/L in Cortex and ______mOsmol/L in inner Medulla
100, 1000
200, 1100
300, 1200
400 , 1300
Gradient in counter current mechanism is caused by
Nacl
Urea
Both of above
None of above
Human kidneys can produce urine nearly ________ times concentrated than initial filtrate formed
Two
Three
Four
Five
Adult human excretes on an average _____urine per day
1-1.5
2-2.5L
3-3.5 L
4-4.5L
Urine formed in body is________coloured watery fluid whose pH is_______
Yellow, 6.0
Yellow 7.4
Green, 6.0
Green ,7.4
On an average________gm urea is excreted out per day
15-20
20-25
25-30
30-35
Glycosuria is present in
Diabetes mellitus
Diabetes insipidus
Both of above
None of above
Apart from kidneys elimination of waste products is done by
Lungs
Liver
Skin
All of the above
_______amounts of CO2 is excreted by lungs
100 mL/ min
200 mL/ min
300 mL/ min
400 mL/ min
Uremia occurs due to accumulation of _____ in blood due to malfunction of kidneys leading to kidney failure
Urea
Uric acid
Creatinine
None of the above
Hormone facilitating Reabsorption of water from latter parts of tubule
ADH
ACTH
ANF
None of the above
________causes Reabsorption of Na and water from distal parts of tubule
Aldosterone
ACTH
ADH
PTH
Fall in GFR / glomerular BP/ glomerular blood flow activates JG cells to release
Angiotensin
Renin
Aldosterone
ACTH
Increase in blood flow to atria of heart can cause release of_____which causes vasodilation and decrease in BP
Angiotensin
Renin
Aldosterone
Atrial Natriuretic Factor (ANF)
Dialysis fluid contain all constituents of plasma EXCEPT
(a)
