Structurally, lysosomes are membrane-bound sacs filled with digestive enzymes. These enzymes are made by RER. Lysosomes are a
kind of waste disposal system of the cell. These help to keep the cell clean by digesting any foreign material as well as worn-out cell
organelles. Foreign materials entering the cell, such as bacteria or food, as well as old organelles end up in the lysosomes, which break complex substances into simpler substances. Lysosomes are able to do this because they contain powerful digestive enzymes capable of breaking down all organic material. During the disturbance in cellular metabolism, for example, when the cell gets damaged, lysosomes may burst and the
enzymes digest their own cell. Therefore, lysosomes are also known as the ‘suicide bags’ of a cell.

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