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Cell Organelles (AP)
| Question | Answer |
|---|---|
| Nucleus | storage of genetic material |
| Nucleolus | rRNA is produced; creates ribosomes |
| Endoplasmic Reticulum (ER) | system of channels and sacs connected to the nuclear envelope |
| Rough ER | contains ribosomes; proteins produced here are moved to the cell membrane or secreted |
| Smooth ER | synthesizes phospholipids found in the cell membrane; also produces testosterone in testicles, detoxifies drugs in the liver, and stores calcium in muscles |
| Vesicles | small sacs containing materials for transport |
| Golgi Apparatus | collects, sorts, packages, and distributes proteins and lipids using vesicles |
| Lysosome | vesicles that contain digestive enzymes and act as the garbage disposals of the cell |
| Vacuoles | large sacs that store materials; larger in plants to store water, sugars, salts, and pigments |
| Peroxisomes | vesicles that enclose enzymes and produce hydrogen peroxide to break down fats |
| Chloroplast | uses solar energy to synthesize carbohydrates; found in plants and algae |
| Mitochondria | produces ATP using carbohydrates through cellular respiration |
| Actin Filaments (Microfilaments) | long, thin, flexible fibers that act as a network under the plasma membrane and provide structural support |
| Intermediate Filaments | ropelike structures that support the plasma membrane and function in cell-to-cell junctions |
| Microtubules | small, hollow cylinders created by centrosomes that maintain cell shape and act as tracks for organelle movement; work during cell division |
| Centrioles | microtubule organizing center that works during cell division by creating the mitotic spindle |
| Cilia | hairlike projections that help with movement |
| Flagella | longer hairlike projections that help with movement |