Across
- 1. Contain digestive enzymes to break down waste
- 4. Connective tissue that stores fat
- 6. Flexible tissue that reduces friction in joints
- 10. Tissue that covers internal and external body surfaces
- 11. Thick protein fibres that give connective tissue strength
- 12. Tissue that sends electrical messages around the body
- 14. Type of muscle found in the heart
- 15. Basic unit of all living organisms
- 17. Tiny structures where proteins are made
- 18. Hard tissue providing structure and protection
- 20. Site of energy release by respiration
- 21. Found in ciliated epithelium, helps sweep mucus away
- 22. Hair-like projections that move substances across epithelial surfaces
Down
- 2. Makes and transports lipids and hormones
- 3. Type of muscle that moves under conscious control
- 5. Jelly-like substance where chemical reactions occur
- 6. Controls movement of substances in and out of the cell
- 7. Packages and transports proteins around the cell
- 8. Connective tissue that connects muscle to bone
- 9. Cell that carries electrical impulses
- 13. Controls all cell activities and contains genetic material
- 16. Type of muscle found in the gut and blood vessels
- 19. Connective tissue that connects bone to bone