| A | B |
|---|
| Cell membrane | Thin, flexible barrier around the cell; regulates what enters and leaves the cell |
| Cytoplasm | The area between the nucleus and the cell membrane |
| Golgi bodies | Attach carbohydrates and lipids to proteins |
| Lysosomes | Small organelles filled with enzymes; break down lipids, carbohydrates, and proteins from food |
| Microtubules | Hollow tubes of protein that maintain cell shape |
| Mitochondria | Use energy from food to make high-energy compounds that the cell can use to power growth, development, and movement |
| Nucleolus | A small, dense region in the nucleus that makes ribosomes |
| Nucleus | Controls most cell processes and contain the hereditary information of DNA |
| Ribosomes | Small particles made of RNA; assemble proteins |
| Rough endoplasmic reticulum | Involved in the synthesis of proteins; has ribosomes attached to its surface |
| Smooth endoplasmic reticulum | Contain collections of enzymes that perform tasks such as the synthesis of lipids; does not have ribosomes attached to its surface |
| Vacuole | Saclike structures that store water, salts, proteins, and carbohydrates |
| Desmosomes | Proteins that anchor cells to each other to widthstand stress |
| Gap Junctions | Openings of cell membrane that allow for movement or ions or impluses between cells |
| Microvilli | Projections that increase a cells surface area |
| Tight junctions | Bind cells together to prevent leaking between cells |
| Cell | Smallest Unit or building block of the body |
| Tissue | Many of the same cell type working together to accomplish a function or job |
| Organ | Different tissues working together to accomplish a function or job |
| Lipid bilayer | Make up cell membrane to prevent mixing internal and external environments |
| Membrane Cholesterol Molecules | To allow flexibility of a cell membrane |
| Glycolipid Proteins | Cell identification by immune system |
| Peroxisomes | Use oxygen to detoxify poisons |
