Ch26- Urine Formation

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created 8 years ago by chemistry_goo
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1

Filtration

pressure driven
water and solute movement
from blood into capsule
based solely on size

2

Fenestrations

pores

3

Secretion

transprot of substance into *tubular fluid*

4

Peritubular, Tubular

reabsorption filtrates into _____ fluid, secretion transports substances into _____ fluid.

5

Reabsorption

removal of water and solutes from filtrate into peritubular fluid

6

Reabsorption

selective process (*simple* diffusion or carrier mediated)

7

*Simple* diffusion and Carrier Mediated

reabsorption occurs through these 2 selective processes

8

Carrier Mediated

movement facilitated by substrate binding
usually unidirectional movement
distribution is different cross cell surface
one cell-many types
can saturate proteins (like enzymes)

9

Apical vs Basal

distribution is different cross cell surfaces
______ vs ______ (carrier protein)

10

Saturate protiens

glucose levels that exceed carrier Tm

11

Renal Threshold

plasma component/nutrient begins to appear in urine

12

pressure driven,water and solute movement,from blood into capsule,
based solely on size

four filtration components