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bss 6th chapter 1
| Question | Answer |
|---|---|
| Species | a group of organisms that have the same characteristics and are able to produce offspring that can reproduce |
| compound microscope | microscope having more than one lens |
| cell theory | theory stating that the cell is the basic unit of all living organisms, and only living cells can produce new living cells |
| nucleus | part of the cell that controls activities of other cell parts |
| chromosome | stringlike structure in a cell nucleus that carries information controlling all the cell's activities |
| cell membrane | thin outer covering that holds a cell together |
| cytoplasm | clear, jellylike material that fills the space between the cell membrane and the nucleus |
| organelle | tiny structure in the cytoplasm of a cell that performs a special job |
| mitochondria | organelles where food and oxygen react to relaease energy |
| vacuole | saclike organelle used for storing materials |
| 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 the energy from the sunlight |
| chlorophyll | green substance int he chloroplasts that traps energy from sunlight |
| cell wall | tough, nonliving material that acts like an outside skeleton for each plant |