1. Nucleus: The control center of the cell. It stores the genetic information (DNA) and directs the cell's activities.
2. Ribosomes: Tiny protein factories. They translate the genetic code from the DNA into proteins.
3. Endoplasmic Reticulum (ER): A network of interconnected membranes.
* Rough ER: Studded with ribosomes, it synthesizes and modifies proteins.
* Smooth ER: Lacks ribosomes, it synthesizes lipids, detoxifies harmful substances, and stores calcium.
4. Golgi Apparatus: A stack of flattened sacs that further process, package, and ship proteins and lipids made by the ER.
5. Mitochondria: The powerhouses of the cell. They break down glucose to produce ATP (adenosine triphosphate), the cell's main energy currency.
6. Lysosomes: The cell's recycling centers. They contain enzymes that break down waste products, cellular debris, and foreign invaders.
7. Vacuoles: Storage compartments for water, nutrients, and waste products. In plant cells, they also play a role in maintaining cell shape and turgor pressure.
8. Peroxisomes: Small, membrane-bound organelles that contain enzymes for various metabolic reactions, including detoxification of harmful substances and fatty acid breakdown.
9. Centrioles (in animal cells): Cylindrical structures that help organize microtubules during cell division.
10. Cytoskeleton: A network of protein fibers that provide structural support, maintain cell shape, and facilitate movement within the cell.
11. Cell Wall (in plant cells): A rigid outer layer that provides structural support and protection.
12. Chloroplasts (in plant cells): Sites of photosynthesis, where sunlight is converted into chemical energy.
13. Plastids (in plant cells): Organelles that store pigments, starch, and other molecules.
Remember, this is just a brief overview of the functions of some major organelles. There are many other organelles and structures within a cell, each playing a vital role in maintaining the cell's life and function.
