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Life Science Terms
| Term | Definition |
|---|---|
| asexual reproduction | type of reproduction that forms a new organism that is identical to its parent |
| carrying capacity | largest population an area can support |
| cell | basic unit of life |
| cell membrane | the organelle that controls what enters and leaves the cell |
| cell wall | a rigid structure found outside plant cells and some other single-celled organisms |
| chloroplast | green organelle found in plants that is the site for photosynthesis |
| chromosome | a structure made of DNA that contains genes |
| consumer | an organism that obtains energy by eating other organisms |
| dependent variable | the thing being measured in an experiment |
| diffusion | process by which molecules move from an area of higher concentration to an area of lower concentration |
| dominant | a trait that is always expressed when present in the organism |
| energy pyramid | a diagram that shows the flow of energy from producers to consumers in a food web |
| eukaryotic cell | a cell with membrane-bound structures |
| function | what something does (its job) |
| gene | a segment of DNA that determines a specific trait |
| independent variable | the thing changed by the person doing the experiment |
| kingdom | first and largest category used to classify organisms |
| mitochondria | cell organelle where glucose is broken down to release energy |
| nucleus | cell organelle that contains DNA and controls most cell functions |
| organelle | a tiny cell structure that carries out a specific function within the cell |
| osmosis | process by which water molecules move from an area of higher concentration to an area of lower concentration through a cell membrane |
| photosynthesis | process by which plants and some other organisms use water, carbon dioxide, and sunlight to make food (glucose) |
| producer | any organism that can make its own food |
| prokaryotic cell | a cell without any membrane-bound structures |
| recessive | a trait that is only expressed when the dominant trait is absent |
| respiration | process by which producers and consumers release energy stored in sugar molecules |
| sexual reproduction | type of reproduction where two cells join to form a new organism, offspring is not identical to either parent cell |
| species | group of similar organisms that can reproduce among themselves and produce fertile offspring |
| structure | what something looks like (its form) |
| succession | natural, gradual changes in the types of species that live in an area |
Created by:
regshorter
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