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15 Cards in this Set

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herbivores
A heterotrophic animal that eats plants
carnivores
An animal, such as a shark, hawk, or spider that eats other animals.
omnivores
A heterotrophic animal that consumes both meat and plant material.
peristalsis
Rhythmic waves of contraction of smooth muscle that push food along the digestive tract.
pancreas
produces several hydrolytic enzymes and an alkaline solution rich in bicarbonate.
liver
Produces bile,a mixture of substances that is stored in the gallbladder until needed.
bolus
A ball of food
pepsin
An enzyme that begins the hydrolysis of proteins. Pepsin breaks peptide bonds adjacent to specific amino acids, cleaving proteins into smaller polypeptides.
pepsinogen
Inactive form of pepsin.
acid chime
As a result of mixing and enzyme action, what begins in the stomach as a recently swallowed meal becomes a nutrient broth known as...
trypsin
are specific for peptide bonds adjacent to certain amino acids, and thus, like pepsin, break large polypeptides into shorter chains.
bile
contains no digestive enzymes, but it does contain bile salts, which act as detergents and aid in the digestion and absorption o fats. Bile also contains pigments that are by-products of red blood cell destruction in the liver.
gastrin
A digestive hormone, secreted by the stomach, that stimulates the secretion of gastric juice.
secretin
Stimulates pancreas to release bicarbonate, which neutralizes acid chyme in duodenum
brush border
A term describing the microvillus-covered surface of small intestinal epithelial cells.