Tubular Transport Flashcards
0
Q
What describes the rate of a certain molecule coming into the filtration space
A
Filtered load
=GFR * plasma concentration of molecule
1
Q
Which molecules are nearly 100% reabsorbed
A
Glucose, sodium, and water
2
Q
What describes the rate of a certain molecule leaving the body through urine
A
The urinary excretion rate
= UFR * concentration of the molecule in the urine
3
Q
How is the urine excretion rate related to re absorption rate
A
Reabsorb rate = filtered load - urine excretion rate for any given molecule
4
Q
What drives proximal convoluted tubule BULK re absorption
A
Oncotic pressure gradient ( greater in the peri tubular capillary than in the interstitial fluid/ filtrate)
