Key Ideas • all living things are made of one or more cells • cells are surrounded by a cell membrane * contain tiny structures • cell organelles carry out specific jobs inside a cell | Vocabulary cell membrane - a thin, protective covering that surrounds a cell nucleus - the DNA-containing control center of a cell DNA - a substance that contains all the information needed for building & controlling a cell cytoplasm - everything between the cell membrane & the nucleus cytosol - the liquid part of cytoplasm organelle - small structure that does a specific job in a cell mitochondria - energy-supplying organelles proteins - building blocks of cells ribosomes - tiny organelles that make proteins Golgi bodies - organelles that further modify & package proteins cytoskeleton - a supporting structure inside a cell fiber - a long, thin thread cell wall - a tough covering that surrounds & supports plant cells chloroplasts - green organelles that use energy from sunlight to make sugar carbon dioxide - a gas used by chloroplasts vacuole - a storage organelle | Learning Master 8 |
 |
|
|
|