METABOLISM OF LIPIDS

Question 1

most of our digestive enzymes are

Answer 1

water-based

Question 2

since most of our diegstive enzymes are water-based, certain processes are peculiar to ____ only

Answer 2

lipid digestion

Question 3

in lipid digestion, what processes happen in the MOUTH

Answer 3

mechanical & chemical

Question 4

METABOLISM OF LIPIDS

enzyme present in the mouth

Answer 4

lingual lipase

Question 5

in stomach, ____ starts to break down triacylglycerols into diglycerides and fatty acids

Answer 5

gastric lipase

Question 6

within ____ after eating a meal, roughly 30% of the triacylglycerols are converted

Answer 6

2-4 hours

Question 7

the stomach’s ____ and ____ help to disperse the fat molecules, while the diglycerides derived in this process act as further emulsifiers

Answer 7

churning & contractions

Question 8

the diglycerides derived in the process in the stomach further act as

Answer 8

emulsifiers

Question 9

____ fat digestion occurs in the stomach

Answer 9

very little

Question 10

longest to digest

Answer 10

lipids

Question 11

____ is added to emulsify fats

Answer 11

bile

Question 12

____ increases the surface area of lipids, making them accessible to digestive enzymes

Answer 12

emulsification

Question 13

breaks down the fats into free fatty acids and monoglycerides

Answer 13

pancreatic lipase

Question 14

bile salts envelop the fatty acids and monoglycerides to form

Answer 14

micelles

Question 15

have fatty acid core with water-soluble exterior

Answer 15

micelles

Question 16

in the ____, monoglycerides and fatty acids reassembles into triglycerides

Answer 16

intestinal cells

Question 17

triglycerides, cholesterol and phospholipids form ____ when joined with a protein carrier

Answer 17

lipoproteins

Question 18

LIPOPROTEIN

triglycerides & cholesterol esters

Answer 18

inner core

Question 19

LIPOPROTEIN

phospholipids with free cholesterol and protein

Answer 19

outer layer

Question 20

• are lipoprotein carriers of trglycerides and cholesterol esters in the intestine
• they transport fats through the water-based environment to liver and other body tissues

Answer 20

chylomicrons

Question 21

poorly absorbed that phospholipids and triglycerides

Answer 21

cholesterols

Question 22

cholesterol absorption is aided by

Answer 22

increase in dietary fat components

Question 23

cholesterol absorption is hindered by

Answer 23

high fiber content

Question 24

recommended to decrease blood cholesterol

Answer 24

high intake of fiber

Question 25

stool that contains too much fat

Answer 25

steatorrhea