Vocab 6 lesson 2 Flashcards
Denaturation
D-nature-ray-shun
The process of changing a protein’s shape.
Gastrin
A hormone released when food is ingested to stimulate release of digestive fluids.
Pepsinogen
A proenzyme secreted by the stomach as a precursor to pepsin.
Pepsin
An enzyme in the stomach that begins breaking peptide bonds.
Duodenum
(Do-uh-den-numb
It is the first section of the small intestine where some digestion occurs, and it is located immediately after the stomach and leads into the jejunum.
Secretin
A hormone that stimulates the liver and pancreas to produce bile and bicarbonate; inhibits gastrin release.
Cholecystokinin
Co -low -sis- toe- kai- nin
A hormone secreted by the duodenum that causes release of enzymes and bile.
Protease Enzymes
pro-tea-a’s
Enzymes in the small intestine that break long peptide chains into shorter peptide chains.
Peptidase
pep-ta-dice
An enzyme that breaks down small peptides.
Aminopeptidases
Enzymes that cleave individual amino acids from a peptide chain so they may be absorbed.
Hepatic Portal Vein
The vein that transports blood from the spleen, stomach, pancreas, and the intestinal tract to the liver.
Collagen
A protein formed of a triple-helix structure with great tensile strength, found primarily in skin, muscles/connective tissue, and bones.
Tensile Strength
Ability of a material to resist breaking under tension.
Elastin
A protein with high elasticity, found mainly in the skin.
Keratin
A protein found in hair and nails.
