Lipid digestion Flashcards Preview

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Flashcards in Lipid digestion Deck (18)
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1
Q

The __________ nature of lipids makes their digestion difficult

A

Hydrophobic

2
Q

What is an emulsification droplet?

A

A droplet of lipid surrounded by bile salts

3
Q

What is a micelle?

A

Monoglycerides and free fatty acids associated with bile salts

4
Q

What is a chylomicron?

A

Golgi coats triglycerides with a film of phospholipids and protein

5
Q

What does lipoprotein lipase do?

A

Hydrolyzes chylomicron triglycerides and monoglycerides + FFA

6
Q

Where does lingual lipase come from?

A

From intrinsic salivary glands of tongue

7
Q

Where does gastric lipase come from?

A

From fundic chief cells

8
Q

What digests 10-15% of dietary fat?

A

Lingual lipase

Dietary lipase

9
Q

How are the emulsification droplets formed?

A

Stomach churning and duodenal segmentation

10
Q

In _______, bile has been released so the fat droplets surround bile _____

A

duodenum

salts

11
Q

What does pancreatic lipase do?

A

Digests fat from surface of these droplets

12
Q

What does colipase do?

Where does it come from?

A

Keeps pancreatic lipase attached to fat droplet

From pancreas

13
Q

As micelles move past enterocytes, _____ _____ ____ and ________ enter the enterocyte.

A

free fatty acids

monoglycerides

14
Q

Inside the enterocyte, free fatty acids and monoglycerides are resynthesized into ________ and are coated with phospholipids and protein to become ________, these leave the cell into the lacteal.

A

triglycerides

chylomicrons

15
Q

Chylomicrons get into the _____ and lipoprotein lipase on the surface of endothelial cells, ________ the triglycerides into free fatty acids and monoglycerides for use in the body.

A

blood

hydrolyzes

16
Q

What breaks down DNA?

A

Deoxyribonuclease

17
Q

What breaks down RNA?

A

Ribonuclease

18
Q

Where are deoxyribonuclease and ribonuclease created?

A

Pancreas