|The lysosomes are small bubbles in the cell filled with acid. They are like the garbage men of the cell. If there is anything in the cell that is no longer being used, a lysosome will surround it and break it down into small pieces. These pieces can then be recycled and build new parts of the cell.|
Inside the lysosome are proteins called enzymes. Enzymes help the lysosome break things down into smaller pieces. Lysosomes can also help break down anything that should not be in the cell, such as bacteria, or any other invaders.
Finally, let's look at the cell's forcefield, the cell membrane.