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| the rigid, porous outer layer of a plant cell |
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| a bundle of microtubules that hepls orangize the movement of chromosomes during cell division |
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| an organelle that converts the radiant energy of the sun into chemical energy through the process of photosynthesis |
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| a network of passageways in which chemical compounds are manufactured, processed, and transported |
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Definition
| 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, 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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Definition
| a small body in the nucleus where ribosomes are synthesized |
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| a round body in the center of the cell that contains DNA and directs the cell's activities |
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| a cell structure the performs a specific function |
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| a double-layered membrane the surrounds the cell. Also called the cell membrane, it regulates what eneters and leaves the cell |
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Definition
| small structure that can store food (leucoplast) or pigment (chromoplast) |
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Definition
| tiny structure where proteins are synthesized |
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