Reabsorption

Question 1

to keep [Na+] low in the ______ it is pumped across the _________ by _______
what kind of transport is this

Answer 1

1. tubule
2. basolateral membrane
3. Na+ Cl- ATPase
   primary active transport

Question 2

[Na+] low in the tubule, it diffuses from the _____ into the ______ cells via ________
what kind of transport

Answer 2

1. filtrate
2. tubule
3. SGLT
   secondary active transport

Question 3

water is reabsorbed via ______

Answer 3

osmosis

Question 4

anions move down their _______

attracted to:

Answer 4

electrical gradients

Na+

Question 5

as the filtrate becomes increasingly concentrated, _________ and urea reabsorb (how?)

Answer 5

cations

passively reabsorb

Question 6

SGLT (on which membrane) allows __________ to move into the tubule cells

Answer 6

1. apical membrane

2. glucose

Question 7

glucose uses ________ (on basolateral membrane) which is a type of _______ diffusion to move into the ECF

Answer 7

1. GLUT

2. facilitated

Question 8

_______ proteins and (some ______ and enzymes) are reabsorbed via __________

Answer 8

1. small proteins
2. hormones
3. transcytosis

Question 9

transporters used for reabsorption exhibit
1.
2.
3.

Answer 9

1. specificity
2. competition
3. saturation

Question 10

describe saturation and give an example

Answer 10

when all transporters are occupied and rate of transport reaches transport maximum
example: untreated diabetes

Question 11

what allows solutes and water to diffuse from the medullary interstitium

Answer 11

low hydrostatic pressure in the paratubullar capillaries