Tubular secretion helps in
[A] ionic balance of body fluid
[B] acid base balance of body fluid
Which of the following is an incorrect statement about filtration?
[A] Selective process
[B] Non-selective process
[C] Performed by glomerulus
[D] It occurs through the usage of capillary (glomerulus) blood pressure
Which of the following is incorrect about PCT?
[A] Lined with simple cuboidal brush border epithelium
[B] All essential nutrient and 70-80% electrolyte and water are reabsorbed here
[C] It helps in PH maintenance of body fluid by selective of secration H+ ion and by absorption of HCO3–
[D] It does not help in maintenance of ionic balance of body fluid
Which of the following part has minimum reabsorption?
[D] Collecting duct
Select total number of correct statement about loop of Henle.
(1) Descending limb is permeable to water
(2) Descending limb almost impermeable to electrolyte
(3) Ascending limb impermeable to water
(4) It allows transport of electrolyte only actively
(5) At the tip of loop of Henle concentration of filtrate is 1200 m osmol/1
(6) It helps in maintenance of high osmolarity in medullary interstitium.
Which segment help in pH maintenance of body fluid?
[C] Collecting duct
DCT helps in
(A) conditional reabsorption of Na+ and water
(B) HCO3– sorption
(C) pH maintenance
(D) selective secretion of H +and K+
[A] A, C, D only
[B] B, C, D only
[D] C, D only
Which of the following segment allows passage of small amount of urea into modularly interstitium to keep up the osmolarity?
[D] Collecting duct
At which place we first tune use the term ‘urine’ for filtrate
[D] Collecting duct (en
Counter-current mechanism is present in
[B] Vasa recta
[C] Both (a) and (b)
Which of the following is incorrect about counter-current mechanism?
[A] Flow of filtrate in two limbs of vasa recta is in opposite direction
[B] Flow of blood in two limbs of vasa recta is also in opposite direction
[C] NaCI is transported by ascending limb of HL which is exchanged with the descending limb of vasa recta
[D] NaCI is returned to in interstitium by the ascending portion of vasa recta.
Counter current mechanism maintains concentration gradient in the medullary interstitium. It helps in
[A] easy passage of water from PCX
[B] easy passage of water from DCT
[C] easy passage of water from HL
[D] easy passage of water from collecting duct
Total filtrate formed in 24 hours in human kidney is
[A] 1.8 litre
[B] 8.0 litre
[C] 18 litre
[D] 180 litre
Which of the following is most likely to cause an increase in the glomerular filtration rates?
[A] Blockage of ureter
[B] Dilation of the afferent arterioles
[C] Release of renin from the juxtaglomerular apparatus
[D] Volume depletion
Which of these will be completely reabsorbed from glomerular filtrate under normal conditions in the nephrons?
[C] Uric acid