Which organelle is this? a small, round cell structure containing chemicals that break down large food particles into smaller ones. they are the custodians or recycling crew of the cell.

The correct answer is cell organelle -Lysosome

Lysosome is small, round, membrane bound cell organelle that contains cluster of digestive enzymes which are capable of break down large food particles such as protein, carbohydrates and lipids into smaller ones. Lysosomes function as the digestive system of the cell. Thus, lysosomes recycle nutrients for the cell.