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Nutritions words
Words need to know for the final.
Term | Definition |
---|---|
Calories | the amount of heat required at a pressure of one atmosphere to raise the temperature of one gram of water one degree Celsius. |
Chemosynthesis | synthesis of organic compounds (as in living cells) by energy derived from inorganic chemical reactions. |
Energy | the capacity of acting or being active. |
Ingestion | the process of taking food, drink, or another substance into the body by swallowing or absorbing it. "vomiting after ingestion of contaminated food" |
Absorption | the process of absorbing something or of being absorbed. |
Bulimia | an abnormal and constant craving for food. |
Anorexia | a lack or loss of appetite for food (as a medical condition). |
Digestion | the process of breaking down food by mechanical and enzymatic action in the alimentary canal into substances that can be used by the body. |
Peristalsis | the involuntary constriction and relaxation of the muscles of the intestine or another canal, creating wavelike movements that push the contents of the canal forward. |
Cellulose | an insoluble substance that is the main constituent of plant cell walls and of vegetable fibers such as cotton. It is a polysaccharide consisting of chains of glucose monomers. |
Capillary | any of the fine branching blood vessels that form a network between the arterioles and venules. |
Villi | any of numerous minute elongated projections set closely together on a surface, typically increasing its surface area for the absorption of substances, in particular. |
Roughage | fibrous indigestible material in vegetable foodstuffs that aids the passage of food and waste products through the gut. |
Egestion | is the discharge or expulsion of undigested material (food) from a cell in case of unicellular organisms, and from the digestive tract via the anus in case of multicellular organisms. |
Chyme | the pulpy acidic fluid that passes from the stomach to the small intestine, consisting of gastric juices and partly digested food. |
Constipation | a condition in which there is difficulty in emptying the bowels, usually associated with hardened feces. |
Body mass index | a condition in which there is difficulty in emptying the bowels, usually associated with hardened feces. |
Autotroph | an organism that is able to form nutritional organic substances from simple inorganic substances such as carbon dioxide. |
Emulsification: | The breakdown of fat globules in the duodenum into tiny droplets, which provides a larger surface area on which the enzyme pancreatic lipase can act to digest the fats into fatty acids and glycerol. |
Heterotroph | an organism deriving its nutritional requirements from complex organic substances. |