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nutrition vocab

TermDefinition
autotroph organism that obtains its energy from abiotic sources such as sunlight or inorganic chemicals
heterotrophy organism that obtains it energy and nutrients by consuming other organisms
chemoautotroph an organism that depend on inorganic chemicals for it energy
photoautotroph any organism that derives it energy for food synthesis from light
calorie measure of energy released from digesting food
energy the capacity or power to do work such as capacity to move an object
ingestion the process of taking food and drink or another substance into the body by swallowing or absorbing it
digestion process by which large ,complex molecules are broken down into smaller molecules that can be used by cells
egestion the process of removing undigested waste material the body
roughage indigestible material in vegetable foodstuff that aids the passage of food and waste products through the gut
cellulose an insoluble substance that is the main constituent of plant cell walls and of vegetable fibers such as cotton.
body mass index a weight to height ratio
absorption process by which nutrients move out of one system and into another
diffusion movement of dissolved molecules in a fluid or gas from a region of higher concentration to a region of lower concentration
villi increasing it surface area for the absorption
constipation a condition in which there is difficulty in emptying the bowels, usually associated with hardened
enzyme protein that catalyzes chemical reactions for organisms
marcomolecules a molecule containing a very large number of atoms, such as a protein, nucleic acid, or synthetic polymer
bulimia . An eating disorder characterized by episodes of secretive excessive eating followed by inappropriate methods of weight control,
anorexia eating disorder characterized by markedly reduced appetite or total aversion to food
Created by: ashley2063xo