Which organelle contains digestive enzymes?

• A. Ribosome
• B. Golgi bodies
• C. Nucleic Acids
• D. Lysosomes

Answer: (D)

The main idea being tested is where cellular digestion happens and which organelle actually houses the digestive enzymes. Lysosomes are membrane-bound compartments filled with hydrolytic enzymes that break down proteins, fats, nucleic acids, and other macromolecules. Their interior is acidic, which strengthens enzyme activity, and they receive their enzymes from the Golgi as part of a trafficking process. When materials are taken into the cell or old cell parts need recycling, lysosomes fuse with those vesicles to digest the contents and recycle the building blocks.

Ribosomes aren’t involved in digestion; they’re the sites of protein synthesis. The Golgi apparatus modifies, sorts, and ships proteins and lipids, but doesn’t house digestive enzymes itself. Nucleic acids refer to DNA and RNA, which are genetic materials, not organelles.