What is the role of lysosomes in metamorphosis?

• A. They are involved in tissue breakdown and recycling of components
• B. They synthesize proteins
• C. They store lipids
• D. They replicate DNA

Answer: (A)

Lysosomes drive metamorphosis by breaking down old tissues and recycling their components to support new growth. During metamorphosis, organisms dismantle larval tissues and repurpose the materials to build adult structures. Lysosomes contain hydrolytic enzymes that degrade proteins, lipids, carbohydrates, and nucleic acids inside the cell, and they work with autophagosomes to digest damaged organelles and other macromolecules. This breakdown-and-reuse process provides the nutrients and building blocks needed for rapid remodeling. The other functions listed don’t fit: protein synthesis is done by ribosomes and the endoplasmic reticulum, lipid storage is handled by lipid droplets and storage compartments, and DNA replication occurs in the nucleus with DNA polymerases.