- Contained inside the nuclear envelope which contains nuclear pores to allow movement of substances.
- Contains a nucleolus which is a dense structure of nucleic acid and crystalline protein. Contains cell's DNA.
- Involved in ribosome system.
- Largest organelle in the cell.
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- Bound by a double membrane.
- Convert chemical energy into ATP through respiration
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Rough Endoplasmic Reticulum
- Ribosomes attached to surface.
- Transport proteins are synthesised here.
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Smooth Endoplasmic Reticulum.
- Network of tubes and flattened sacs.
- Continuous with plasma and nuclear membrane.
- Site for lipid and carbohydrate metabolism (including hormone synthesis)
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- Manufacture proteins
- Either free in cytoplasm or on the surface of the Rough Endoplasmic Reticulum.
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- Series of sacs stacked on top of one another.
- Stores, modifies and packages proteins.
- Tags proteins so that they end up at the correct destination.
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- Associated with nuclear division
- Microtubular structures
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- Bound by a single membrane.
- Contain and transport enzymes that break down food and foreign matter.
- Have little internal structure.
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