Lysosomes are one of the membrane bound organelles which are present in both plant and animal cells. There membrane is also made up of phospholipids. This membrane protects the cell from the hydrolytic enzymes of lysosomes. This organelle present inside the plant cell is most important for the process of digestion and excretion. It contains various digestive enzymes which digest the damaged and worn out organelles, bacteria’s, viruses etc. They are also called as “suicidal bags” or “garbage disposable units” of a cell by De Duve. They contain more than 50 hydrolytic enzymes which can breakdown and digest various molecules. Their fluid content has acidic pH approximately equal to 5, due to the presence of digestive enzymes.