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| The rigid, porous outer layer of a plant cell. |
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| A bundle of microtubules that helps organize the movement of chromosomes during cell division |
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| A Jelly-like substance composed mainly of water, occupying most of the space between the cell membrane and the nucleus. |
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| A network of passageways in which chemical compounds are manufactured, processed, and transported. |
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| A stack of membranes that collects, modifies, and packages chemical compounds. |
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| A small sac that contains digestive chemicals. |
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| Organelles that, using oxygen that converts nutrients into energy that can be used by the cell. |
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| A double- layered membrane that surrounds and protects the nucleus. |
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| A small body in the nucleus where ribosomes are synthesized. |
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| A round body in the center of the cellthat contains DNA and directs the cell's activities. |
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| A cell structure that performs a specific function. |
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