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Description
Flashcards by Vivien Szalai, updated more than 1 year ago
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Created by Vivien Szalai
over 2 years ago
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| Question | Answer |
| Metabolism | All the chemical reactions that occur in the cells of living organisms. |
| Anabolic Reactions | Reactions that use energy to join small molecules together to form larger molecules. Example: Photosynthesis |
| Catabolic Reactions | Reactions that use energy to break down larger molecules into smaller ones. Example: Respiration |
| Continuity of Life | The ability of an organism to exist from one generation to the next. |
| Symbiosis | A relationship between to organisms where at least one benefits and none is harmed. Example: Lichen=Alga+Fungus |
| Parasitism | A relationship between to organisms where one lives off athe other causing damage to the host organism. Example: Fleas |
| Trace elements | Needed elements for our bodies in small quantities. |
| Monosaccharide | Basic sugar/one sugar unit. (Glucose, Fructose, Galactose) |
| Disaccharide | Two monosaccharide units joint together/double sugar molecules. (Maltose, Sucrose, Lactose) |
| Polysaccharide | Many monosaccharide units joint together. In plants stored as starch and cellulose. In animals stored as glycogen. |
| Vitamins | Chemicals 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. |
| Grazing food chain | Initial plant is living in the food chain. grass->grasshoppers->frogs->hawk |
| Detritus food chain | Food chain begins with dead organic matter and/or animal waste(detritus). fallen leaves->earthwormes->blackbirds->hawks |
| Food web | Chart showing all the feeding connections in the habitat/ecosystem. Two or more linked Food chains make up a food web |
| Trophic Level | Position of an organism in a food chain. Also called Energy Level. |
| Pyramid of Numbers | Diagram representing the numbers of organisms at each trophic level in a food chain. |
| Ecology | The study of the interactions between organisms and between organisms and their environment. |
| Biosphere | Part of the Earth containing organisms. |
| Ecosystem | Group of clearly distinguished organisms that interact with their environment as a unit. |
| Habitat |