| A | B |
| 1. All living things are made up of one or more cells. 2. Cells are the basic unit of structure and function in organisms 3. All cells arise from existing cells. | Cell Theory |
| Covers surface of the cell; acts as a barrier between the inside of a cell and a cell's environment | Cell Membrane |
| Fluid filled region inside a cell | Cytoplasm |
| Site of protein synthesis in a cell | Ribosome |
| Network of protein filaments inside a cell that gives it shape and helps with movement | Cytoskeleton |
| Type of cell that does not have a nucleus; bacteria cells | Prokaryotic |
| Rigid structure that surrounds the cell membrane; found in prokayotes and plant cells | Cell Wall |
| Long hair-like structure on a cell which enables a cell to move | Flagella |
| Type of cell that has a nucleus; plant and animal cells | Eukaryotic |
| Controls the activities in a cell; contains the DNA | Nucleus |
| Small structures in a cell with a specific function | Organelle |
| Hair-like structures on the surface of a cell | Cilia |
| A lipid that contains phosphorus; structural component of a cell membrane | Phospholipid |
| Cell membrane composed of two layers of phospholipids | Lipid Bilayer |
| Protein in the cell membrane that aids in the movement of substances in and out of a cell | Transport Protein |
| Protein in a cell membrane which binds to a specific signal molecule causing the cell to respond | Receptor Protein |
| Protein on the cell membrane that identifies a cell type | Cell Surface Marker Protein |
| Produces, processes, and transports proteins and lipids in cells | Endoplasmic Reticulum |
| Makes and packages materials to be transported out of a cell | Golgi Apparatus |
| Cell organelle that contains digestive enzymes | Lysomes |
| Site of cellular respiration; produces energy | Mitochondria |
| Site of photosynthesis in plant cell | Chloroplasts |
| Large sacs found in plant cells which store water | Central Vacuole |