absorption of glucose

• absorbed from the gut by coupled active transport.
• the active transport protien is the sodium - pottasium ATPase.
• the facilliated diffusion protien is the sodium - glucose co transporter portien.
• the sodium ions are pumped out to restore the sodium gradient.
• theres a high concentration of glucose inside the e.c
• glucose enters the blood by diffusing through gaps between the capillary e.c.
• glucose is carried in the blood to every cell, where it is used for respiration.

Lactose intolerance

• digested into glucose and galactose.
• symptoms are flatulance and diarrhoea.
• happens because they dont have the lactase enzyme so cant digest lactose.
• pressence of lactose lowers the w.p so water cannot be absorbed by osmosis.