Year 7 Biology Crossword

3. a gas produced by plants during photosynthesis
5. the part of the cell that controls activities and contains DNA
8. a group of similar cells working together to do a specific job
10. a space in plant cells that contains cell sap and helps keep the cell firm
12. a type of sugar made by plants during photosynthesis
14. a protein that speeds up chemical reactions in the body without being used up
15. a type of plant tissue that carries water and minerals from the roots
17. the joining of a sperm cell and an egg cell
18. the genetic material found in the nucleus of cells

1. a group of tissues working together to perform a function
2. the organ system that breaks down food into smaller molecules for the body to use
4. the part of a plant cell where photosynthesis happens
6. a strong outer layer found in plant cells that provides support
7. the green pigment in chloroplasts that absorbs sunlight for photosynthesis
9. the process by which plants make food using sunlight, carbon dioxide and water
11. the jelly-like substance inside a cell where chemical reactions happen
13. the thin outer layer of a cell that controls what goes in and out
16. the organ system that allows gas exchange, including the lungs