Animal cell

2. membrane, highly porous membrane separating nucleus from the cytoplasm
4. reticulum, organelles composed of an extensive network of folded membranes that performs several tasks within a cell
6. holds cell's main DNA, often called the control center of the cell
9. double-membrane-bound organelles in which nutrients are converted to energy
11. found within the nuclear membrane, it is the center where RNA is made and ribosomes are assembled before being transported out of the nucleus
12. membrane, semipermeable membrane between the cell contents and the cell's surroundings

1. paired organelles in animal cells that organize fibers required for cell division
3. apparatus, organelles where proteins and lipids are stored and then modified to suit the needs of the cell
5. organelle in animal cells responsible for hydrolysis reactions that break down proteins, carbohydrates, and some lipids
7. non-membrane-bound organelles responsible for protein synthesis
8. larger membrane-bound organelle used for storage of food, water, or waste
10. jellylike fluid inside cells in which organelles are suspended