Cells

1. The organelle in cells that stores DNA and helps the cell make proteins
3. Minute hairlike organelles, identical in structure to flagella, that line the surfaces of certain cells and beat in rhythmic waves
7. The powerhouse of the cell
10. The material contained within the nucleus of a cell
13. An organelle that modifies, packages and sorts proteins sent from the endoplasmic reticulum
14. A thin biological layer that contains the cytoplasm and all organelles of the cell
17. Cells with membrane-bound organelles and a nucleus
19. Cells without membrane-bound organelles or a nucleus
20. The main protection barrier that surrounds a plant cell
22. The jelly-like liquid that fills the inside of a cell

2. A cell organelle that makes other substances that the cell needs, such as lipids (fats) and carbohydrates (sugars)
4. The nucleus and organelles bounded by a very flexible membrane
5. The nucleus and organelles bounded by a thick and rigid cell wall
6. The basic principle of modern biology
8. The double membrane layer that separates the contents of the nucleus from the rest of the cell
9. The main food producer for plant cells
11. The cell's digestive system
12. An organelle in plant cells used to store food and water
15. Tiny molecules in cells that help the cell make proteins
16. Makes ribosomes for the cell
18. A cell organelle that contains many ribosomes on its outer surface and makes proteins the cell needs
21. The process in cell division by which the nucleus divides