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cell organelles
Cell Organelles
Term | Definition |
---|---|
Cell Wall | Present on the outside of plant cells; helps maintain the shape; helps support the shape of the cell; made of cellulose |
Cell Membrane | ‘Envelope’ of the cell, holding the fluid within the cell; determines which substances may enter and leave the cell |
Ribosome | Small, round organelle which may float freely in the cytoplasm or be attached to the endoplasmic reticulum; job is to help synthesize proteins |
Endoplasmic Reticulum | Set of membranes that form ‘canals’ for transporting substances produced by the cell |
Mitochondria | Organelle which is the site of energy production; has folded, interior membranes for extra surface area |
Golgi Apparatus | Small vesicles which collect products from the cell; packages them for release |
Nucleus | Organelle which controls all cell functions; contains the genetic material, DNA |
Chloroplast | Organelle that carries on photosynthesis in plant cells; disc-shaped; contains chlorophyll |
Vacuole | Cell vesicle which may hold water, food, or cell products for purposes of storage; plant cells store large amounts of water in these vesicles |
Cytoplasm | The fluid, or gel-like substance that fills the interior of the cell; holds all of the organelles; where many functions take place |
Lysosomes | The part of the cell the breaks down food particles and old organelles |