Question

why lysosomes are known as suicide bag?

Answer 1

Lysosomes are organelles in the cell. These little parts are very important. They have chemicals in them that digest the wastes and other bad organelles. 
When the cell dies the lysosmes work swiftly with their chemicals and digest the dead cell. Without lysosomes living organisms would become filled with dead cells.that,s y lysosomes called suicidal bags

Answer 2

HEY..... (^_^)

Lysosomes contains harmful digestive enzymes , if the cell damaged then one of the lysosomes get burst releasing that harmful enzymes. Due to this the enzymes digest their own cell and the cell dies . So it's called the suicidal bag of the cell.

Hope it helps u (^_-)-☆