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Life Functions

QuestionAnswer
Nutrition obtain food and digest it down into nutrients which can be absorbed and used by the organism
Excretion The removal of metabolic wastes produced by cells as a result of their life processes
Transport Absorption and circulation
Synthesis Metabolic activities by which an organism uses small molecules to build larger molecules
Growth Getting bigger by increasing in size or number of cells
Reproduction Organisms producing more of their own kind
Respiration Respiration is the release of energy by the chemical breakdown of nutrients (primarily glucose) for use by the organism or cell. It is not the same as breathing!
Regulation Involves the coordination and control of all the activities of an organism
Metabolism The sum of all life processes, includes all the chemical reactions and activities being carried out in an organism, Preconception is that it has to do with food, but this is actually true because almost all of the life functions have to do with food
Homeostasis Maintaining a constant, stable, internal environment regardless of an organism's external environment
Assimilation of nutrients by plants through their roots.
Ingestion the act of consuming food
Digestion the breakdown of food into nutrients by the body
Egestion biological process of discharging unusable, undigested material from an organism or cell, most commonly known as defecation in multicellular animals
Absorption usable materials (food, water, oxygen) are taken in by the organism into their cells via diffusion or active transport
Circulation these materials are circulated around within the organism and within cells.
Development Changes that occur as an organism matures
Stimuli are changes in the environment that invoke a response
Asexual reproduction Only one parent involved, Offspring are genetically identical to the parent, Bacteria, some plants, fungi
Sexual Reproduction Two parents involved, Offspring are genetically different from the parent, Animals
Created by: BKDYLAN
 

 



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