| A | B |
| Cells membrane | double-layered that regulates what enters ad leaves the cell and also provides protection and support |
| organ | group of tissues that work together to perform closely related functions. |
| diffusion | process by which molecules ted to move from an area of high concentration to and area of low concentration |
| cell wall | strong supporting layer around the cell membrane in plants, algae, and some bacteria. |
| tissue | group of similar cells that perform a particular function |
| lipid bilayer | double-layered sheet that forms the core of nearly all cell membranes |
| endocytosis | process by which a cell takes material into the cell by infolding of the cell membrane |
| exocytosis | process by which a cell releases large amounts of material. |
| osmosis | diffusion of water through a selectively permeable membrane. |
| Organ system | group of organs that work together to perform a specific function |
| Active transport | using protein pumps the cell can move molecules in the opposite directions of diffusion |
| pinocytosis | many cells take up liquid from the surrounding environment |