The main structures involved in intracellular transport include:
1. Endoplasmic Reticulum (ER): Synthesizes proteins and lipids, which are then transported to the Golgi apparatus. 2. Golgi Apparatus: Modifies, sorts, and packages proteins and lipids for transport to their final destinations. 3. Lysosomes: Degrade and recycle cellular waste materials. 4. Mitochondria: Generate ATP, which powers motor proteins and other cellular processes.