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Bio 9 Vocab
This is ALL the Bio 9 vocab for units 1 though 4.
| Term | Definition |
|---|---|
| Biodiversity | biological diversity in an environment as indicated by numbers of different species of plants and animals |
| Biotic | of, relating to, or caused by living organisms (A Living thing) |
| Abiotic | not biotic (Non-living elements) |
| Species Richness | Number of different species in an area |
| Species Evenness | Relative abundance of the species |
| Niche | the ecological role of an organism in a community especially in regard to food consumption |
| Ecosystem | the complex of a community of organisms and its environment functioning as an ecological unit |
| Carrying Capacity | The maximum number of a species that the environment can support |
| Limiting Factor | An environmental factor that can restrict the growth of a population in an ecosystem |
| Trophic Level | one of the hierarchical strata of a food web characterized by organisms which are the same number of steps removed from the primary producers (An organisms position in a food chain) |
| Community | a unified body of individuals |
| Population | the whole number of people or inhabitants in a country or region |
| Autotroph | An organism that produces its own food |
| Heterotroph | Organisms that consume others for energy |
| Producer | An organism that produces its own food |
| Consumer | An organism that obtains its energy by feeding on other organisms |
| Decomposer | any of various organisms (such as many bacteria and fungi) that return constituents of organic substances to ecological cycles by feeding on and breaking down dead protoplasm |
| Food Web | the totality of interacting food chains in an ecological community |
| Food Chain | an arrangement of the organisms of an ecological community according to the order of predation in which each uses the next usually lower member as a food source |
| Energy Pyramid | A model showing how energy flows though an ecosystem |
| Stability | the quality, state, or degree of being stable |
| Disturbance | a departure from a norm or standard : a deviation, disruption, or impairment in form, function, or activity |
| Resilience | an ability to recover from or adjust easily to misfortune or change |
| Ecosystem Services | Beneficial things contributed directly and indirectly by nature |
| Cell | The basic building blocks of all living things |
| Organelles | a specialized cellular part (such as a mitochondrion, chloroplast, or nucleus) that has a specific function and is considered analogous to an organ |
| Homeostasis | a relatively stable state of equilibrium or a tendency toward such a state between the different but interdependent elements or groups of elements of an organism, population, or group |
| Active Transport | the movement of a chemical substance by the expenditure of energy against a gradient in concentration or in electrical potential across a plasma membrane |
| Passive Transport | the movement of substances (as by diffusion) across a cell membrane without the expenditure of energy |
| Diffusion | The movement of molecules from a high concentration to a low concentration |
| Osmosis | Movement of a solvent (such as water) through a semipermeable membrane (as of a living cell) into a solution of higher solute concentration that tends to equalize the concentrations of solute on the two sides of the membrane |
| Facilitated Diffusion | A form of passive transport where molecules that are too large or charged to cross the membrane on their own use the help of specific transport proteins |
| Equilibrium | A balanced state where the concentration of a substance is equal on both sides of the membrane |
| Concentration | The amount of a component in a given area or volume |
| Concentration Gradients | The difference in the concentration of a substance between 2 areas which is what drives the movement of molecules |
| Cell Membrane | a semipermeable limiting layer of cell protoplasm consisting of a fluid phospholipid bilayer with intercalated proteins |
| Semi-Permeable | permeable to some usually small molecules but not to other usually larger particles |
| Phospholipid Bilayer | A 2 layer structure allowing small molecules in and out of the cell. |
| Transport Channel/Channel Proteins | A trans membrane that facilitates passive movement of specific ions across the membrane |
| Solution | a homogenous mixture formed by mixing one solid, liquid, or gaseous substance with another |
| Solvent | The thing in a solution that does the dissolving |
| Solute | The thing in a solution that is dissolved |
| Macromolecule | a very large molecule |
| Monomers | Small building block molecules that can join together to make larger molecules |
Created by:
ZellTeck102
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