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Traits of life

Characteristics of life

TermDefinition
Anabolism A chemical reaction where smaller molecules are joined together to form larger molecules e.g. photosynthesis.
Catabolism Chemical reaction where larger molecules are broken down to smaller molecules e.g. respiration.
Cell Basic structural unit of a living organism (that possesses its characteristics)
Continuity of life The ability of organisms to exist from one generation to the next
Egestion Removal of unabsorbed material from the body e.g. faeces.
Excretion Removal of the waste products of metabolisms
Life [characteristics of] Common features that separate living things from non-living things (organisation
Metabolism All the chemical reactions taking place in living organisms
Nutrition The obtaining or making of food by living organisms
Reproduction The creating of new individuals of its own kind by an organism (by either sexual or asexual means).
Response The reacting of an organism to stimuli
Organisation Organisms are composed of cells. These cells function together to form tissues, organs, organ systems, individuals (organisms) and populations.
Organ systems A group of organs working together to carry out a function, e.g. digestive system.
Created by: PDST Biology
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