Across
- 3. Protein that fights infections
- 4. Molecule made of amino acids
- 9. Process plants use to make food
- 10. Organisms that include yeasts and molds
- 12. Green pigment in plants
- 13. Community of living organisms and their environment
- 16. Structure of DNA and protein
- 18. Infectious agent that replicates in host cells
- 19. Single-celled microorganisms
Down
- 1. Protein that speeds up chemical reactions
- 2. Nerve cell
- 5. Movement of water through a membrane
- 6. Molecule that carries genetic information
- 7. Cell division resulting in two identical cells
- 8. Organelle that contains genetic material
- 11. A unit of heredity
- 14. Group of cells with a similar function
- 15. A body part with a specific function
- 16. The basic unit of life
- 17. Change in DNA sequence