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7th - Ch. 1, Part 1
Cells
| Question | Answer |
|---|---|
| cell membrane | flexible covering that surrounds every cell |
| cell wall | a rigid wall that surrounds the cell outside its cell membrane; found in plants, fungi, and some bacteria |
| chloroplast | organelle that uses light energy to make food from water and carbon dioxide |
| chromosome | structure made of long chains of DNA |
| cilia | short, hairlike appendages |
| cytoplasm | a thick fluid on the inside of a cell, made mostly of water |
| cytoskeleton | a network of fibers inside a cell that functions during muscle contraction, cell division, cell movement, and maintenance of cell shape |
| eukaryotic cell | a cell with a nucleus and other organelles |
| mitochondrion | organelle that transforms the usable energy in food molecules |
| nucleus | an organelle that contains the genetic material; often called the control center of the cell |
| organelle | compartment in the cytoplasm that has a specific function |
| prokaryotic cell | a cell without a nucleus and other organelles |
| ribosome | a small structure without a membrane, that builds proteins |