Cells

2. - Movement of particles from an area of high concentration to an area of low concentration
3. -Cells with a high proportion of mitochondria, necessary for contraction and relaxation
6. - The process of passive transport involving the movement of molecules across a cell membrane with the assistance of transport proteins
9. - Organelle that modifies, sorts, and packages proteins
11. - What are the specialized vesicles responsible for transporting proteins from the Golgi apparatus to the cell membrane for secretion?
14. - Permits the passage of some substances but not others
16. - Organelle that contains the cell's genetic material
18. - Organelle responsible for energy production in the cell
19. - Type of transport where large molecules are moved out of the cell by vesicles fusing with the plasma membrane
20. - Jelly-like substance that fills the cell and holds organelles
21. - Site of protein synthesis for export

1. - Organelle involved in protein synthesis
4. - Double-layered structure that regulates what enters and leaves the cell
5. - Network of flattened membranes involved in protein and lipid synthesis
7. - The process of passive transport involving the movement of molecules across a cell membrane with the assistance of transport proteins
8. - Prominent oval-shaped structure containing genetic material
10. - Method of transport where substances move freely through the phospholipid bilayer
12. - The passage of substances involving water only
13. - The breakdown of ATP provides energy for this type of transport
15. - Process of cellular eating, where the cell engulfs large particles
17. - The powerhouse of the cell