| A | B |
|---|
| species | a group of organisms that have the same characteristics |
| compound microscope | microscope having more than one lens |
| cell theory | the cell is the basic unit of all living things |
| nucleus | part of the cell that controls other cell parts |
| chromosome | stringlike structure in a cell nucleus that carries information controlling all the cell's activities |
| cell membrame | the outer covering that holds a cell together |
| cytoplasm | clear jellylike material that fills the space between the cell membrane and nucleus |
| organelle | tiny structure in the cytoplasm of a cell that performs a special job |
| mitochondria | organelles where food and oxygen react to release energy |
| endoplasmic reticulum | organelle that transports materials inside the cell |
| ribosome | organelle that puts together proteins for the cell |
| chloroplast | organelle that makes sugars, using carbon dioxide, water, and energy from sunlight |
| chlorophyll | green substance in the chloroplasts that traps energy from sunlight |
| cell wall | tough non-living material that acts like an outside skeleton for each plant cell |
| vacuole | stores water, nutrients, and wastes |
