Which organelle is typically small and round and plays a key role in the digestion of old cell parts?

Which organelle is typically small and round and plays a key role in the digestion of old cell parts?

• A. Chloroplast
• B. Lysosome
• C. Vacuole
• D. Ribosome

Answer: (B)

The lysosome is the correct choice because it is a small, round organelle that contains enzymes responsible for breaking down waste materials and cellular debris. Lysosomes serve as the cell's digestive system, helping to recycle the components of old or damaged organelles, as well as ingested material. By digesting these cellular components, lysosomes play a crucial role in cellular maintenance and homeostasis, ensuring that cells can efficiently remove and recycle parts that are no longer functional. In contrast, chloroplasts are involved in photosynthesis, converting light energy into chemical energy, while vacuoles primarily function as storage organelles that can hold various substances, including nutrients and waste. Ribosomes are the sites of protein synthesis and are not involved in the digestion of cell parts.

The lysosome is the correct choice because it is a small, round organelle that contains enzymes responsible for breaking down waste materials and cellular debris. Lysosomes serve as the cell's digestive system, helping to recycle the components of old or damaged organelles, as well as ingested material. By digesting these cellular components, lysosomes play a crucial role in cellular maintenance and homeostasis, ensuring that cells can efficiently remove and recycle parts that are no longer functional.

In contrast, chloroplasts are involved in photosynthesis, converting light energy into chemical energy, while vacuoles primarily function as storage organelles that can hold various substances, including nutrients and waste. Ribosomes are the sites of protein synthesis and are not involved in the digestion of cell parts.