Golgi apparatus functions include which of the following?

• A. Photosynthesis
• B. RNA transcription
• C. Modifies and packages proteins; may package enzymes in vesicles for lysosomes
• D. Energy production

Answer: (C)

Proteins made in the rough endoplasmic reticulum are sent to the Golgi apparatus to be refined and shipped to their final destinations. The Golgi receives these proteins, adds or trims sugar groups and other modifications, and then sorts them. It packages them into new vesicles that bud off to go to places like the lysosomes, the plasma membrane, or for secretion outside the cell. In particular, the Golgi can package enzymes into lysosome-destined vesicles, helping enzymes reach the lysosome where they function. This role—modifying and packaging proteins and directing enzymes toward lysosomes—captures the Golgi’s main job as the cell’s processing and shipping center. Other functions listed belong to different organelles: photosynthesis occurs in chloroplasts, RNA transcription in the nucleus, and energy production mainly in mitochondria.