Flashcards
Biology Leavingcertificate Material - Unit 1
Cards in this deck (20)
- 1MetabolismAll the chemical reactions that occur in the cells of living organisms.
- 2Anabolic ReactionsReactions that use energy to join small molecules together to form larger molecules.
Example: Photosynthesis - 3Catabolic ReactionsReactions that use energy to break down larger molecules into smaller ones.
Example: Respiration - 4Continuity of LifeThe ability of an organism to exist from one generation to the next.
- 5SymbiosisA relationship between to organisms where at least one benefits and none is harmed.
Example: Lichen=Alga+Fungus - 6ParasitismA relationship between to organisms where one lives off athe other causing damage to the host organism.
Example: Fleas - 7Trace elementsNeeded elements for our bodies in small quantities.
- 8MonosaccharideBasic sugar/one sugar unit.
(Glucose, Fructose, Galactose) - 9DisaccharideTwo monosaccharide units joint together/double sugar molecules.
(Maltose, Sucrose, Lactose) - 10PolysaccharideMany monosaccharide units joint together.
In plants stored as starch and cellulose.
In animals stored as glycogen. - 11VitaminsChemicals needed in very small amounts in the body. Essential for life ans living systems. Cannot make them on out bodies, they must be taken in.
- 12Grazing food chainInitial plant is living in the food chain.
grass->grasshoppers->frogs->hawk - 13Detritus food chainFood chain begins with dead organic matter and/or animal waste(detritus).
fallen leaves->earthwormes->blackbirds->hawks - 14Food webChart showing all the feeding connections in the habitat/ecosystem.
Two or more linked Food chains make up a food web - 15Trophic LevelPosition of an organism in a food chain. Also called Energy Level.
- 16Pyramid of NumbersDiagram representing the numbers of organisms at each trophic level in a food chain.
- 17EcologyThe study of the interactions between organisms and between organisms and their environment.
- 18BiospherePart of the Earth containing organisms.
- 19EcosystemGroup of clearly distinguished organisms that interact with their environment as a unit.
- 20Habitat
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- Key words, important words and definitions from Unit 1 (The Study of Life) on the Biology Leaving Certificate course (Higher Level extended material included).
- Created by
- Vivien Szalai
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