| A | B |
|---|
| plasma membrane | phospholipid bilayer with embedded proteins / regulates passage of substances into and out of cell |
| nucleus | the nuclear envelope surrounding nucleoplasm, chromatin, and nucleolus / controls cellular reproduction and protein synthesis |
| nucleolus | a concentrated area of chromatin, RNA, and proteins / responsible for making ribosomes |
| ribosome | protein and RNA in two subunits / responsible for making proteins |
| endoplasmic reticulum (smooth) | a system of membranous channels and vesicles / function depends on the cell type-lipid synthesis in some cells |
| endoplasmic reticulum (rough) | a complicated system of membranous channels and sacs / transport system in the cell and the ribosomes make proteins |
| golgi apparatus | a stack of membranous sacs / responsible for modifying, packaging, and secreting proteins |
| vacuole and vesicle | membranous sacs which store substances |
| lysosome | membranous vesicle containing digestive enzymes for intracellular digestion |
| mitochondrion | the site of cellular respiration (process by which the energy of glucose is converted into the energy of ATP molecules) |
| cytoskeleton | helps maintain the shape of the cell and aids in the movement of other cell parts |
| cilia and flagella | projections of cells that aid in movement |
| centriole | organizes microtubules to move material throughout the cell or form the spindle |
