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Science Vocabulary 5

Science Words To Learn

Calories- A unit that is used to measure energy.
Chemosynthesis The synthesis of organic compounds by bacteria or other living organisms using energy derived from reactions involving inorganic chemicals, typically in the absence of sunlight.
Energy Energy is a property of matter and space, objects and fields, it can be transferred between objects and can also be converted in form.
Ingestion The process of taking food, drink, or another substance into the body by swallowing or absorbing it.
Absorption The process by which one thing absorbs or is absorbed by another.
Bulimia An emotional disorder characterized by a distorted body image and an obsessive desire to lose weight, in which bouts of extreme overeating are followed by fasting or self-induced vomiting or purging.
Anorexia Lack or loss of appetite for food (as a medical condition).
Digestion The process of digesting food.
Peristalsis The involuntary constriction and relaxation of the muscles of the intestine or another canal, creating wave-like movements that push the contents of the canal forward.
Cellulose An insoluble substance which is the main constituent of plant cell walls and of vegetable fibres 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 the finger like or thread like projections from the surface of certain membranous structures, typically serving to increase surface area and facilitate the passage of fluid or nutrients.
Roughage Fibrous indigestible material in vegetable foodstuffs which aids the passage of food and waste products through the gut.
Egestion (of a cell or organism) excrete (waste matter)
Chyme The pulpy acidic fluid which 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 faeces.
Body mass index An approximate measure of whether someone is over- or underweight, calculated by dividing their weight in kilograms by the square of their height in metres.
Autotroph An organism that is able to form nutritional organic substances from simple inorganic substances such as carbon dioxide.
Emulsification Make into or become an emulsion.
Heterotroph An organism deriving its nutritional requirements from complex organic substances.
Created by: 1011018