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| the rigid, outer layer of a plant cell. |
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| a bundle of mictubules that helps organize the movement of chromosomes during cell division |
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| an organelle that converts the radient energy of the sun into chemical energy through the process of photosynthesis. |
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| a jellly-like substance, composed mainly of water, occupying most of the space between the cell memebrane and the necleus. |
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| a network of passageways in which chemical compounds are manufactured, processed, and transported. |
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| a stack of memebrans that collects, modifies, and packages chemical compounds. |
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| a small sac that contains digastive 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-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 inthe center of the cell that cotains DNA and directs the cells activities |
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