Cells and Respiration Crossword

3. The basic building blocks of all living things.
4. A thick solution that fills each cell and is enclosed by the cell membrane.
6. Generates most of the chemical energy needed to power the cell's biochemical reactions.
13. A colourless, odourless gas produced by burning carbon and organic compounds and by respiration.
14. Light from the sun.
15. A type of lens that is attached to a variety of optical devices such as telescopes and microscopes.
18. The part of the microscope where you put the slide.
19. A subcellular structure that has one or more specific jobs to perform in the cell.

1. The strength required for sustained physical or mental activity.
2. An optical instrument used for viewing very small objects, such as mineral samples or animal or plant cells.
5. The process by which plants use sunlight, water, and carbon dioxide to create oxygen and energy.
7. Convert light energy into relatively stable chemical energy by the photosynthetic process.
8. A colourless, odourless reactive gas, the chemical element of atomic number 8 and is what animals breathe.
9. A membrane-bound organelle that contains the cell's chromosomes.
10. A chemical reaction that happens in all living cells, including plant cells and animal cells.
11. Is found in all cells and separates the interior of the cell from the outside environment.
12. A colourless, transparent, odourless liquid that forms the seas, lakes, rivers, and rain.
16. A membrane-bound cell organelle which is In animal cells and plant cells
17. A structural layer surrounding some types of cells just outside the cell membrane. It can be tough, flexible, and sometimes rigid.
20. A simple sugar which is an important energy source in living organisms and is a component of many carbohydrates.