3.2 Lipid Digestion and Absorption

Question 1

Where digestion of lipid begins

Answer 1

Stomach

Question 2

Catalyzes the digestion of lipids in the stomach

Answer 2

Lingual lipase and gastric lipase

Question 3

Emulsification of dietary lipid occurs in the

Answer 3

Duedenum

Question 4

Structure of bile salts

Answer 4

sterol ring with side chain to which glycine or taurine attaches by an amide linkage

Question 5

Action of pancreatic lipase

Answer 5

Removes FA of TAGs at carbons 1 and 3

Question 6

hydorylzes cholesterul esters to produce free cholesterol plus free fatty acids

Answer 6

Cholesteryl ester hydrolase

Question 7

Phospholipid degradation: removes fatty acid at carbon 2, leaving a lysophospholipid

Answer 7

Phospholipase A2

Question 8

Phospholipid degradation: removes fatty acid at carbon 1, leaving a glycerolphosphoryl base

Answer 8

Lysophospholipase

Question 9

Action of cholecystokinin

Answer 9

Acts on glalbladder to release bile
Acts on pancreas to release digestive enzymes
Decrease gastric motility
Activated in response to lipids and partially digested proteins entering the upper regions of the small intestine

Question 10

Action of secretin

Answer 10

In response to low pH, causes the pancreas and liver to release a solution rich in HCO3 to neutralize pH in order to favor digestion

Question 11

Activates long chain FAs to become Fatty Acyl CoA to prepare for resynthesis

Answer 11

Fatty Acyl Coa Synthetase

Question 12

Creates TAG from Fattyl Acyl CoA and 2-monoacyl glycerol by transferring 2 fatty acids to 2-monoacyl glycerol

Answer 12

TAG synthase

Question 13

Reacylates llysophospholipids to form phospholipid

Answer 13

Acyltransferase

Question 14

Degrades TAG into free fatty acids and glycerol

Answer 14

Lipoprotein Lipase