Across
- 3. Organelle where respiration releases energy
- 4. Movement of particles from high to low concentration
- 5. Amount of substance in a given volume
- 6. Structure that provides strength and support in plant cells
- 7. Cell division for growth and repair producing identical cells
- 9. Neutral particle found in the nucleus
- 10. Structure that controls entry and exit of substances in the cell
- 12. Central part of the atom containing protons and neutrons
- 13. State where particles are far apart and move freely
- 15. Site of photosynthesis in plant cells
- 18. How many times larger an image is than the real object
- 20. State where particles vibrate in fixed positions
- 21. Cell division that forms gametes with half the chromosome number
- 22. Sub‑atomic particle with a negative charge
Down
- 1. Change of state from solid to liquid
- 2. Positively charged particle in the nucleus
- 4. Mass per unit volume of a substance
- 5. Smallest unit of life
- 8. Atoms of the same element with different numbers of neutrons
- 9. Structure in the cell that contains genetic material
- 11. Change of state from liquid to gas at the surface
- 14. Diffusion of water through a partially permeable membrane
- 16. State where particles are close but can move past each other
- 17. Force caused by particles colliding with container walls
- 19. Smallest unit of an element