CELL STRUCTURE introduction.
Cell membrane.
Cell wall.
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Nucleus nucleolus nuclear envelope DNA inner membrane outer membrane nuclear pore Nuclear.
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Mitochondrion food oxygen outer membrane inner membrane water carbon dioxide AT p.
lysosome 5. worn-out organelle Usable molecules recycled to make new organelles. 1. 2. digestive enzymes Lysosome fuses with worn-out organelle. Organelle broken down. Small molecules returned to cytosol. Waste molecules expelled from cell..
Rough endoplasmic reticulum nuclear envelope cisternae cisternal spaces mRNA ribosome amino a chain.
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