3. Transport Of Amino Acids, Glucose, Urea And Sulphate Flashcards
Where is glucose reabsorbed?
Virtually all reabsorbed in proximal convolted tubule
How is glucose reabsorbed?
By secondary active transport
Driven by energy released from transport of Na+ down its conc gradient
How is glucose transported across membrane in first part of proximal convoluted tubule?
SGLT2 transporter
One Na+ in for one glucose in
How is glucose transported across the membrane further down the proximal convoluted tubule?
SGLT1 transporter
2Na+ in for 1 glucose in
What happens if plasma glucose rises above 10mmol/L?
Glycosuria will develop as all Na+/glucose carriers are full
Where are amino acids reabsorbed?
Proximal convoluted tubule
How are amino acids reabsorbed across the membrane?
By secondary active transport
Symport with Na+ driven by Na+/K+ ATPase as with glucose
