BRAINCAKE

Absorption of Triglycerides

AQA AS-level BiologyDigestionLesson 9 of 10

Lipids and glycerol move into the lacteals and join the lymphatic system.

Micelles are structures that are made of monoglycerides and bile salts 4-7nm in diameter.

When micelles come into contact with the epithelial cells lining the villi, they break down releasing monoglycerides and fatty acids.

Sign in free to see the rest of this lesson, the R.E.C.I.P.E. recall steps and the quiz

BrainCake is free. Make an account in seconds and pick up where this page stops.

Key terms in this lesson

hydrolysis
The breaking of a covalent bond within a molecule using a water molecule.
phospholipid
A lipid in which one fatty acid is replaced by a phosphate group, giving a hydrophilic head and hydrophobic tails.
triglyceride
A lipid made of one glycerol molecule joined to three fatty acids by ester bonds.
smooth endoplasmic reticulum
A network of membranes without ribosomes, involved in the synthesis and storage of lipids and carbohydrates.
Golgi apparatus
A stack of membrane-bound sacs that modifies, packages and transports proteins and lipids, forming secretory vesicles and lysosomes.

More in Digestion

All 10 lessons in Digestion · All AQA AS-level Biology topics