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| the rigid,porous outer layer of a plant cell. |
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Definition
| a bundle of microtubules that helps organize the movement of chromosomes during cell division. |
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Definition
| an organelle that converts the radiant energy of the sun into chemical energy through the process of photosynthesis. |
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Definition
| a jelly-like substance,composed mainly of water,occupying most of the space between the cell membrane and the nucleus. |
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Definition
| a network of passagesways in which chemical compounds are manufactured,processed,and transported. |
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Definition
| a stack of membranes that |
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