Cells

1. A structure found inside cells that is involved in making proteins.
3. Organisms whose cells contain a nucleus and other membrane-bound organelles.
5. A specialized cellular part.
7. Hairlike structure that acts primarily as an organelle of locomotion in the cells of many living organisms.
8. A network of membranes inside a cell through which proteins and other molecules move.
10. An organelle within the cells of plants and certain algae that is the site of photosynthesis.
13. The semipermeable membrane surrounding the cytoplasm of a cell.
15. The gelatinous liquid that fills the inside of a cell.
16. Small, slender, hair-like structures present on the surface of all mammalian cells.

2. Organelles in cells that produce energy and are responsible for many other cellular functions.
4. A membrane-bound cell organelle that contains digestive enzymes.
6. Prepares proteins and lipid (fat) molecules for use in other places inside and outside the cell.
9. Organisms whose cells lack a nucleus and other organelles.
11. The protective, semi-permeable outer layer of a plant cell.
12. The smallest structural and functional unit of an organism.
14. The structure in a cell that contains the chromosomes.