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Digestion
CHO, Fats, Proteins
18
Organic Chemistry
Undergraduate 3
10/18/2010

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Cards

Term
Mouth
Carbohydrates
Definition

- chewing stimulates secretion of saliva from salivary glands

- salivary amylase breaks down starch into shorter polysaccharides and maltose

- no absorption occurs

Term
Mouth
Lipids
Definition

- salivary glands produce enzyme lingual lipase that digests some triglycerides

- little lipid digestion occurs

Term
Mouth
Protein
Definition

- chewing increases surface area

- no absorption or enzymatic digestion occurs

Term
Stomach
Carbohydrates
Definition

- salivary amylase is destroyed

- no digestion or absorption occurs

- food mixes with gastric juices

Term
Stomach
Lipids
Definition

- arrives intact

- mixes with gastric juices and broken into droplets

- gastric lipase digests some triglycerides

- little digestion occurs

Term
Stomach
Protein
Definition

- denaturation occurs by hydrochloric acid

- pepsin is activated to break protein into single amino acids and smaller polypeptides

Term
Pancreas
Carbohydrates
Definition

- pancreatic amylase is secreted into small intestine

Term
Pancreas
Lipids
Definition

- release lipid-digesting enzymes to small intestine

Term
Pancreas
Protein
Definition

- release proteases to small intestine

Term
Gallbladder
Carbohydrates
Definition
NOTHING! It was a trick question. I am a stone cold bitch! :P
Term
Gallbladder
Lipids
Definition

- contracts due to hormone CCK

- release bile into small intestine

Term
Gallbladder
Protein
Definition
NOTHING! It was a trick question. I am a stone cold bitch! :P
Term
Small Intestine
Carbohydrates
Definition

- pancreatic amylase breaks down remaining starch into maltose

- specific enzymes break down disaccharides into monosaccharides

- all monosaccharides are absorbed and enter blood stream

Term
Small Intestine
Lipids
Definition

- broken into smaller droplets by bile

- lipid-digesting enzymes break triglycerides into monoglycerides and fatty acids

- lipid-digesting enzymes break dietary cholesterol esters and phospholipids into their components

-micelles transport lipid digetsion products to the enterocytes for absorption

- chylomicrons transport the longer chain fatty acids and monoglycerides through lymphatic system until thoracic duct and enter bloodstream bypassing the liver carrying triglycerides through bloodstream directly to body's cells to be used for energy or to be stored

Term
Small Intestine
Protein
Definition

- proteases are secreted to digest polypeptides into smaller units

- peptidases on the surface of cells complete breakdown of all polypeptides into single amino acids

Term
Liver
Carbohydrates
Definition

- where monosaccharides travel to via bloodstream, then to cells to provide energy

- excess glucose is stored as glycogen in liver

Term
Liver
Protein
Definition

- where amino acids are transported to via blood stream then sent to cells as needed

Term
Large Intestine
Carbohydrates
Definition

- where polysaccharides pass to

- bacteria ferment some undigested polysaccharides

- remaining undigested polysaccharides are excreted in feces

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