cells

9. round or rod- shaped structures in a cell in which food molecules are broken down to produce energy
11. a network of folded membranes within the cell that manufactures and stores many chemicals
12. a plant substance, usually green, that absorbs light energy for use in photosynthesis
13. unable to be penetrated
14. a jellylike material in most cells that surrounds the nucleus

1. movement of materials through a cell membrane using energy
2. the part of a plant where photosynthesis is carried out
3. the movement of molecules from an area of higher concentration to an area of lower concentration
4. a rigid barrier that surrounds the cells of organisms such as plants, algae and fungi
5. enzyme-containing cell parts that help digest food and break down old cell parts
6. carbohydrates woven together to make up the cell wall in plants, algae and fungi wall in plants, algae, and fungi
7. a thin, flexible sheet or layer
8. a series of flattened sacs within a cell where materials are modified and distributed to other parts of the cell
10. a compound, found in living cells, that can store and release energy