Absorption of Products of Digestion

Question 1

Name the 1mm long projections on the wall of the ileum

Answer 1

villi

Question 2

Describe how the ileum is adapted for efficient exchange

Answer 2

large SA due to villi and microvilli on epithelial cells
good blood supply
thin walls - short diffusion pathway

Question 3

Wihch two products of digestion are absorbed in the ileum in the same way. by diffusion and co transport?

Answer 3

monosaccharides and amino acids

Question 4

Name the structure that is formed from monoglycerides, fatty acids and biles salts

Answer 4

micelle

Question 5

How do monglycerides and fatty acids enter epithelial cells of the ileum?

Answer 5

simple diffusion - they are lipid soluble

Question 6

Describe the involvement of the SER in lipid absorption

Answer 6

reforms triglycerides

Question 7

Describe the involvement of golgi apparatus in lipid absorption

Answer 7

form chylomicrons from triglycerides, cholesterole and lipoproteins

Question 8

How do chylomicrons move from the epithelial cell of the ileum?

Answer 8

exocytosis

Question 9

What do chylomicrons move into from the epithelial call of the ileum?

Answer 9

lacteal