Which organelle contains strong digestive enzymes that act as the cell's digestive system?

Explanation

Lysosomes contain strong hydrolytic (digestive) enzymes that act as the cell's digestive system. They break down particles taken in by pinocytosis or phagocytosis, and also break down old parts of the cell into organic molecules that can be reused. Their importance is well demonstrated in the metamorphosis of frog larvae — tadpole tail constituents are broken down by lysosomes and reabsorbed to fuel growth of the frog's arms and legs.