Cell Structures

6. the process where the cell makes a copy of the DNA in its nucleus before division.
9. the final stage of the cell cycle
10. The supporting layer that surrounds the cells of plants and some other organisms.
12. the cell membrane takes particles into the cell by changing shape and engulfing the particles.
13. a large oval organelle that contains the cell's genetic material in the form of DNA and controls many of the cell's activities
15. the first stage of the cell cycle
16. Most of a cell consists of it, fills the region between the cell membrane and the nucleus.
17. convert energy from the food to energy that the cell can use to live and function.
18. the sequence of events in which the cell grows, prepares for division, and divides to form 2 cells

1. the process where molecules move from an area of higher concentration to a lower one.
2. some substances can cross the membrane, but others cannot
3. A sac-like organelle that stores water, food, or other materials needed by the cells.
4. A cell structure that carries out a specific function in the cell.
5. the diffusion of water molecules across a selectively permeable membrane.
7. allows large particles to leave a cell
8. the second stage of the cell cycle
9. The structure and functions of a living organism.
11. A thin, flexible barrier that surrounds a cell and controls which substances pass in and out a cell.
14. an organelle that captures energy from sunlight and converts it to energy that cells can use to make food.