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Cells

TermDefinition
cell membrane outer covering of all cells
cytoplasm gelatin like material inside of every cell
cell wall tough, rigid outer covering that protects a plant cell and gives it shape
organelles "tiny organs" found inside of cells that help regulate function of cells
nucleus directs all cell activities; control center of the cell; separated from the cytoplasm by a nuclear membrane
chloroplast green organelles found only in plant cells; capture light energy and use it to make glucose
mitochondrion organelle where energy is released from the breakdown of food into carbon dioxide and water (plural mitochondria)
ribosomes small structures that make proteins; some float freely in cytoplasm and some are attached to the endoplasmic reticulum
endoplasmic reticulum series of folded membranes in which materials can be processed and moved around inside the cell
Golgi bodies stacked, flattened membranes; can deliver substances to other parts of the cell or out of the cell
tissue a group of similar cells that work together to do one job
organ structure made up of two or more different types of tissues that work together
cell theory has 3 main parts--all organisms are made of cells, cell is the basic unit of organization in organisms, all cells come from other cells
virus a nonliving strand of hereditary material surrounded by a protein coating
host cell where a virus takes over and makes a cell make copies of the virus
eukaryotic cells with membrane-bound structures called organelles
prokaryotic cells without membrane-bound structures and no nucleus
lysosomes organelles that break down and recycle substances
organ system a group of organs working together to perform a certain function
Created by: MsHollinger