Across
- 5. Main structural component of the plasma membrane bilayer
- 8. Atom that has gained or lost electrons and carries a charge
- 12. Bond formed by sharing electrons between atoms
- 13. Control mechanism in which the response reduces or shuts off the original stimulus
- 14. Control center of the cell containing DNA
- 15. Primary active transport mechanism that moves sodium out and potassium into the cell
- 17. Maintenance of stable internal conditions despite external changes
- 18. Study of the structure of body parts
- 19. Movement of substances against their concentration gradient using ATP
- 20. Study of how body parts function
Down
- 1. Solution that causes a cell to gain water and swell
- 2. Specialized structure within a cell that performs a specific function
- 3. Solution that causes a cell to lose water and shrink
- 4. Control mechanism in which the response enhances or amplifies the original stimulus
- 6. Organelle that produces ATP through cellular respiration
- 7. Solution in which there is no net movement of water across the membrane
- 9. Rule stating atoms tend to gain, lose, or share electrons to achieve eight valence electrons
- 10. Site of protein synthesis
- 11. Movement of molecules from high to low concentration
- 16. Diffusion of water across a selectively permeable membrane