Final answer:
The statement is True; the Golgi apparatus is responsible for the modification, packaging, and transport of substances inside and outside the cell.
Step-by-step explanation:
The statement that this organelle can modify and/or assemble substances and then package them for transport to locations inside and outside of the cell is True. The organelle being referred to is the Golgi apparatus, which is a critical component of eukaryotic cells. The Golgi apparatus receives proteins from the rough endoplasmic reticulum (ER), modifies them by adding carbohydrates, phosphates, or other small molecules, and then tags these proteins for delivery to their correct destinations. After modification, the proteins are packaged into vesicles that bud from the trans face of the Golgi apparatus. These vesicles then transport the proteins to their respective locations within the cell or export them outside the cell through a process known as exocytosis.
This structure resembles a post office within the cell, organizing, labeling, and dispatching the cellular products. It plays a crucial role in lipid transport as well as the synthesis of certain polysaccharides in plant cells. It is larger and more numerous in cells with high secretory demands, such as antibody-secreting cells of the immune system.