3.2 Lipid Digestion And Absoprtion

Question 0

Stomach digestion of lipids is catalyzed by

Answer 0

Lingual lipase

Gastric lipase

Question 1

Digestion of lipids starts in the

Answer 1

Stomach

Question 2

Gastric lipase removes fatty acids located at

Answer 2

Carbon 1 and 3

Question 3

Product of gastric lipase

Answer 3

2-monoacylglycerol

Question 4

Site of lipid emulsification

Answer 4

Duodenum

Question 5

Produces bile salts

Answer 5

Liver

Question 6

Stores bile salts

Answer 6

Gall bladder

Question 8

Cholesterol derivatives consist of a

Answer 8

Sterol ring with glycine or taurine

Question 9

Are emulsifying agents which stabilize the dietary lipid particles as they become smaller and prevent them from coalescing

Answer 9

Bile salts

Question 10

Acts upon TAG molecules which are too large to be taken up efficiently by mucosal cells of the intestinal villi

Answer 10

Pancreatic lipase

Question 11

Pancreatic lipase removes acids at carbon ___ using __ reactions

Answer 11

1 and 3

Hydrolysis

Question 12

Products of hydrolysis by pancreatic lipase

Answer 12

2-monoacylglycerol and free fatty acids

Question 13

Restores activity to lipase in the presence of inhibitory substances like bile acids that bind the micelles

Answer 13

Colipase

Question 14

Orlistat inhibits

Answer 14

Gastric lipase and pancreatic lipase

Question 15

Hydrolyzes cholesteryl esters to produce free cholesterol plus free fatty acids

Answer 15

Cholesteryl Ester Hydrolase (Cholesterol Esterase)

Question 16

Increases the activity of cholesteryl ester hydrolase (cholesteryl esterase)

Answer 16

Bile salts

Question 17

COntained in the pancreatic juice which removes one fatty acid from carbon 2 of a phospholipid

Answer 17

Phospholipase A2

Question 18

product of a phospholipase A2

Answer 18

Lysophospholipid

Question 19

Removes remaining fatty acid at carbon 1 of a phospholipid

Answer 19

Lysophosphplipase

Question 20

Product of a lysophospholipase

Answer 20

Glycerolphosphoryl base

Question 21

Small peptide hormone produced by the cells in the mucosa of lower duodenum and jejunum; formed in response to the presence of lipids and partially digested proteins entering the duodenum and jejunum

Answer 21

Cholecystokinin

Question 22

Functions of the cholecystokinin

Answer 22

Gallbladder: enables release of bile
Pancreatic: exocrine cells: release of digestive enzymes
Decrease gastric motility

Question 23

Small peptide hormone produced by the intestines in response to the low pH of the chyme entering the pH; causes the pancreas and the liver to release a solution rich in bicarbonate to neutralize pH to enhance digestive activity by pancreatic enzymes

Answer 23

Secretin

Question 24

Site of bile absorption

Answer 24

Ileum

Question 25

In order to be activated, long chain fatty acids are acted upon by the enzyme ___

Answer 25

Fatty Acyl CoA Synthetase or Thiokinase

Question 26

Product of Acyl CoA Synthetase or Thiokinase

Answer 26

Fatty Acyl CoA

Question 27

Converts fatty acyl CoA into tiracylglycerol by combining Fatty Acyl CoA with a 2-monoacyl glycerol

Answer 27

TAG Synthase (Monoacylglycerol Acyltransferase and Diacylglycerol Acyltransferase)

Question 28

Catalyzes the formation of Cholesteryl ester from fatty acyl CoA

Answer 28

Acyl CoA: Cholesterol Acyltransferase

Question 29

Lymph with exocytosed particles

Answer 29

Chyle

Question 30

Particles inside the lumph

Answer 30

Chylomicrons

Question 31

Degrades TAG into free fatty acids and glycerol

Answer 31

Lipoprotein lipase