What do lysosomes primarily contain to perform their function?

• A. Proteins
• B. Digestive enzymes
• C. Nucleic acids
• D. Hormones

Answer: (B)

Lysosomes are membrane-bound organelles that are essential for cellular digestion and waste processing. They primarily contain digestive enzymes, which are specialized proteins that catalyze the breakdown of various biomolecules. These enzymes are effective at degrading proteins, lipids, carbohydrates, and nucleic acids, allowing the cell to recycle components and eliminate waste products.

The digestive enzymes within lysosomes include hydrolytic enzymes such as proteases, lipases, and glycosidases. When a cell engulfs material through a process like phagocytosis or endocytosis, the material is enclosed in a vesicle that then fuses with a lysosome. The enzymes facilitate the breakdown of the contents within the lysosome, ultimately leading to the release of smaller molecules that can be reused by the cell.

While proteins are a component of lysosomes in the form of these digestive enzymes, they are not the primary substances responsible for the organelle's main function. Nucleic acids and hormones are not involved in the lysosomal function of digestion. Instead, lysosomes play a critical role in maintaining cellular homeostasis by managing waste and recycling essential biological molecules.