Grade 8 Science Crossword

3. This German scientist studied plant cells
6. Contains the DNA of the cell
7. Controls what comes in and goes out of the cell
9. The powerhouse of the cell
11. Gives plant cells stability and structure
12. A basic tool of cell biologists, with technical improvements allowing the visualization of ever-increasing details of cell structure
15. What do these rules belong to: all organisms are made of cells, all existing cells are produced by other living cells, and the cell is the most basic unit of life
16. Uses enzymes to break down macromolecules

1. The membrane is actually two layers of ___________ (fat particles) that are organized in a certain way
2. The basic building blocks of all living things
4. When the cell membrane only allows certain substances to flow through it, it is...
5. The cell membrane plays an important role in keeping harmful substances out, and removing...
8. This German scientist studied animal cells
10. This individual discovered the cell in 1665
13. Parts of the cell that have a specific job to perform in the cell
14. The movement of molecules from a region of lower concentration to a region of higher concentration