Micelles Lipid Digestion Absorption Exam Questions

Question 1

describe how digested lipids are absorbed and then transported to the ileum and lymphatic system

Answer 1

micelles are made of bile salts, fatty acids and monoglycerides
micells carry the fatty acids to the epithelial cells of the ileum
fatty acids are absorbed into the cells of the ileum by simple diffusion
trigycerides are formed

Question 2

describe the important of mcielles in absorbing lipids into the epithelial cells of the ileum

Answer 2

micelles are made of bile salts, fatty acids and monoglycerides
micelles make fatty acids more soluble in water
micells carry the fatty acids to the epithelial cells of the ileum
fatty acids are absorbed into the cells of the ileum by simple diffusion

Question 3

when lipids are digested they first form smaller droplets and then micelles are formed

Answer 3

lipids droplets increase surface area for lipase to act on
this speeds up hydrolysis/digestion
the micelles bring the fatty acids, monoglycerides and glycerol to the epithelial cell