How is glucose absorbed in the small intestine

ØHow is glucose absorbed in the small intestine? LUMEN EPITHELIAL CELL BLOOD CAPILLARY

ØHow is glucose absorbed in the small intestine? LUMEN EPITHELIAL CELL BLOOD CAPILLARY

ØHow is glucose absorbed in the small intestine? LUMEN Sodiumpotassium pump EPITHELIAL CELL BLOOD CAPILLARY

ØHow is glucose absorbed in the small intestine? LUMEN EPITHELIAL CELL BLOOD CAPILLARY Sodiumpotassium pump Actively pumps sodium ions out of the cell into the blood.

ØHow is glucose absorbed in the small intestine? LUMEN Sodium (low) EPITHELIAL CELL BLOOD CAPILLARY Sodium (High) Sodiumpotassium pump Actively pumps sodium ions out of the cell into the blood.

ØHow is glucose absorbed in the small intestine? LUMEN Sodium (low) EPITHELIAL CELL Potassium BLOOD CAPILLARY Sodium (High) Sodiumpotassium pump Actively pumps sodium ions out of the cell into the blood.

ØHow is glucose absorbed in the small intestine? LUMEN Glucose (low) Glucose (High) EPITHELIAL CELL Glucose-Sodium co-transporter Sodium moves down concentration gradient by facilitated diffusion Sodium (High) Sodium (low conc. ) Potassium BLOOD CAPILLARY Sodium (High)

ØHow is glucose absorbed in the small intestine? LUMEN Glucose (low) Glucose (High) EPITHELIAL CELL Glucose-Sodium co-transporter Glucose moved into cell at the same time along with the sodium Sodium (High) Sodium (low conc. ) Potassium BLOOD CAPILLARY Sodium (High)

ØHow is glucose absorbed in the small intestine? LUMEN Glucose (low) EPITHELIAL CELL Sodium (low conc. ) Glucose (High) Glucose carrier Glucose moves down concentration gradient and exits cell into blood by facilitated diffusion Sodium (High) Potassium BLOOD CAPILLARY Glucose (low) Sodium (High)