Monosaccharide Transport Mechanisms

Flashcards covering monosaccharide entry and exit mechanisms in enterocytes.

SGLT1

A transporter that moves Glucose and Galactose into the enterocyte via secondary active transport, coupling movement with 2 Na ions against their concentration gradient.

Secondary Active Transport

A transport mechanism that moves a solute against its concentration gradient by coupling its movement with another solute moving down its electrochemical gradient, as seen with SGLT1.

GLUT5

A transporter that moves Fructose into the enterocyte via facilitated diffusion, moving it down its concentration gradient in a Na-independent manner.

Facilitated Diffusion

A passive transport mechanism that utilizes membrane proteins to move molecules down their concentration gradient, as seen with GLUT5 and GLUT2.

GLUT2

A transporter that moves Glucose, Galactose, and Fructose out of the enterocyte into the capillary blood via facilitated diffusion, transporting them down their concentration gradient.