BIOLOGY June 13
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Created by:
annabsheff on June 13, 2011
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42 terms
Terms | Definitions |
|---|---|
 atom | The smallest unit of matter |
| molecule | a group of atoms that are bonded together |
| macro molecule | a really big molecule |
| organelle | areas inside of a cell that do specific jobs |
| cell | the basic unit of structure and function in an organism |
| tissue | a group of cells that do the same function |
| organ | a group of tissues that have a common function |
| organ system | a group of organs that have a common function |
| organism | any living thing that has all six characteristics of life |
| population | a group of the same species of organisms in the same place at the same time |
| community | the group of populations in the same place at the same time |
| ecosystem | both the community and the non-living factors |
| biome | a collection of ecosystems with similar characteristics |
| biosphere | area of the world capable of supporting life |
| unicellular | made of one cell |
| multicellular | made of more than one cell |
| colonial | live together but don't need it |
| chemical energy | food, necessary for all living things |
| growth | gaining weight, getting taller |
| development | major change: puberty, menopause |
| stimulus | some change in the environment that causes response |
| response | reaction to stimuli |
| energy | some source of food |
| photosynthesis | takes sun energy and turns into food/chemical energy |
| cellular respiration | chemical process that happens in every cell that takes food and breaks it down into energy |
| independent variable | one thing in an experiment that you change purposefully |
| dependent variable | things you measure at the end (the results) |
| control | 0% or normal |
| constants | things that stay the same throughout the experiment |
| classification | grouping things by function or form |
| taxonomy | the science/study of classification |
| Aristotle | one of the first taxonomists; method did not work well |
| Linneaus | 7 Levels of Classification, binomial nomenclature |
| Dichotomous keys | identification tools consisting of a series of two choice questions that lead the user to the correct name |
| 3 domains | new level above kingdoms, introduced in 1990's |
| prokaryotic | minimal to no organelles |
| eukaryotic | has organelles |
| autotrophic | can do photosynthesis |
| heterotrophic | cannot do photosynthesis, must eat for energy |
| ingest | hunt and take in food through digestive system |
| absorb | break food down externally and absorb what is needed |
| chemosynthesis | turn chemicals into food |
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