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Across 3. an organelle within the nucleus - it is where ribosomal RNA is produced. 6. a small body located near the nucleus - it has a dense center and radiating tubules. 7. the thin layer of protein and fat that surrounds the cell. 8. a flattened, layered, sac-like organelle that looks like a stack of pancakes and is located near the nucleus. 9. the jellylike material outside the cell nucleus in which the organelles are located. 10. small organelles composed of RNA-rich cytoplasmic granules that are sites of protein synthesis.

Down 1. body containing many organelles, including the nucleolus. 2. the membrane that surrounds the nucleus. 4. round organelles surrounded by a membrane and containing digestive enzymes. 5. spherical to rod-shaped organelles with a double membrane.