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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, convert nutrients into energy that can be used by the cell. |
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| a double-layer 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 cell that contains DNA and directs the cell's activities. |
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| a cell structure that performs a specific function. |
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| a double-layer membrane that surrounds the cell. Also called the cell membrane, it regulates what enters and leaves the cell. |
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| small structure that can store food (leucoplast) or pigment (chromoplast). |
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| tiny structure where proteins are synthesized. |
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| sac that stores water, nutrients, and other chemicals. The large vacuole found in plant cells helps the cells maintain their shape. |
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| small package of nutrients or proteins created by the golgi apparatus. |
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