Across
- 3. – I release substances from the cell.
- 6. – I surround and engulf large particles.
- 8. – I am the major site of ATP production.
- 10. – I direct most activities inside a eukaryotic cell.
- 12. – I transport substances using cellular energy.
- 14. – I separate the cell from its surroundings.
- 15. – I bring substances from outside into the cell.
- 17. – I describe the movement of water across a selectively permeable membrane.
- 18. – I move molecules from high to low concentration.
- 19. – I give plant cells strength and shape.
- 20. – I provide a pathway for ions or molecules across the membrane.
Down
- 1. – I form the basic lipid bilayer of membranes.
- 2. – I convert light energy into chemical energy.
- 4. – I bind a substance and help move it across a membrane.
- 5. – I assemble amino acids into proteins.
- 7. – I am an infectious RNA molecule without a protein coat.
- 9. – I detect and bind specific external signals.
- 11. – I break down unwanted cellular materials.
- 13. – I help maintain membrane fluidity in animal cells.
- 16. – I modify, sort, and package proteins.