the discharge of undigested food in the Digestive tract for multicellular organisms and is done on the surface of the cell in unicellular organisms.
Roughage
fibrous indigestible material in vegetable foodstuffs that aids the passage of food and waste products through the gut.
Anorexia
An eating disorder causing people to obsess about weight and what they eat.
Absorption
the process or action by which one thing absorbs or is absorbed by another.
constipation
bowel movements that are infrequent or hard to pass
marcomolecules
a molecule containing a very large number of atoms, such as a protein, nucleic acid, or synthetic polymer.
body mass index
a weight-to-height ratio, calculated by dividing one's weight in kilograms by the square of one's height in meters and used as an indicator of obesity and underweight.
ingestion
the process of taking food, drink, or another substance into the body by swallowing or absorbing it.
energy
he property that must be transferred to an object in order to perform work on, or to heat, the object.
