8.1 and 8.2 Crossword Wood

4. Internal membrane syste mfound in eukaryotic cells.
6. The center of an atom which contains the protons and neutrons
7. Flexible double-layered sheet that makes up the cell membrane
9. Thin, flexible barrier that surrounds all cells, regulates what enters and leaves the cell
10. Property of biological membranes that allows some substances to pass across it while others cannot
12. Cell organelle that converts the chemical energy stored in food
14. Basic unit of all forms of life
16. ell organelle that breaks down lipids, carbohydrates, and proteins into small molecules that can be usedby thre rest of the cell.
18. Unicellular organism that lcks a nucleus
19. Cell organelle consisting of RNA and protein found throughout the cytoplasm in a cell

1. Organelle in cells that modifies,sorts, and packages protien and other material from the endoplasmic reticulum for storage in the cell.
2. Strong, supporting layer around the cell membrane in some cells
3. Network of protien filaments in a eukaryotic cell that gives the cell its shape and internal organization and is involved in movement
5. Organelle found in cells of plants and some other organisms that captures the energy from sunlight
8. Fundamental concept of biology that states that all living things are composed of cells
11. Cell organelle that sotrea s materials such as water, salts,protein, and carbohydrates
13. Specailized structure that performs important cellular functions iwhtin a cell
15. Organism whose cells contain a nucleus
17. In eukaryotic cells, all cellucal contents outside the nucleus