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Across: 2. double membrane surrounding the nucleus 5. boundary between cell cytoplasm and the environment 8. inner folded surface of mitochondria 9. vacuoles formed whensmall pieces of Golgi body are pinched off 10. sheet like double membranes continuous with nuclear membrane

Down: 1. The ER is this when ribosomes are attached 2. found in nuclear membrane to allow substances in and out 3. Assembles glycoproteins and transports lipids 4. Small dense structures found in huge numbers in the cell. Made from two sub units 6. Site of aerobic respiration 7. Spherical structure in nucleus which makes ribosomal RNA