| A | B |
|---|
| cell membrane | It controls everything that passes in and out of a cell. Lays down cellulose for plant cell wall. |
| cytoplasm | The clear jelly-like fluid that fills a cell, contains pigments, oil droplets, starch and all organelles. |
| cytoskeleton | Three types of protein fibers, including microtubules, that form a framework for many cellular activities. |
| endoplasmic reticulum | A membrane bounded network of channels running through the cytoplasm. Performs storage and transportation of substances, mostly proteins within the cell. It also creates lipids and membrane components. |
| ribosomes | These manufacture the proteins in the cell. They make up about 1/4 of the mass of a cell. Some float free in the cytoplasm. Most are attached to ER. |
| mitochondria | Chemical breakdown occurs here releasing energy for the cell. It recycles fats, proteins, and carbohydrates. Forms urea and wastes. |
| lysosome | Contains digestive fluids. These break down proteins, carbohydrates and lipids for use by the cell. |
| Golgi complex (body, apparatus) | This organelle packages proteins for transport out of a cell or for storage within the cell. |
| nucleus | The control center for the cell. It contains the chromatin fibers - chromosomes. |
| nucleoplasm | The fluid substance within the nucleus. |
| nucleolus | A dark looking spot within the nucleus. This is made of and synthesizes RNA. |
| chromatin | These condense to form the chromosomes at reproduction time. |
| microvilli | Cell membrane extensions found on cells in the digestive tract used for absorption. |
| cilia | Hair-like structures on cells used to move particles or the organism. |
| flagellum | Tail-like structure used for locomotion. |
| centrosome | The 2 centrioles that remain at right angles to each other. They are made of microtubules and help with mitosis (cell division). |
| peroxisome | A storage site for enzymes and for neutralizing toxins. These are abundant in liver cells. |
| cell wall | Cellulose structure around plant cells giving support. |
| plastids | Double-membraned organelles unique to plants. |
| leucoplast | A colorless plastid. Converts glucose to starch, stores fats and proteins. |
| chromoplast | A plastid that manufactures and stores pigments. |
| chloroplast | A plastid that contains chlorophyll for photosynthesis. |
| vacuole | A membrane bounded sac containing water and other substances. Some are for storage, some contain wastes. More prominent in plants. |
| nuclear pore | Openings in the nuclear membrane allowing RNA to pass out of the nucleus |
