Chloroplast Theory

The Endosybiant theory states that the mitochondria and the chloroplasts were at one point in evolution, prokaryotic cells. It is said that before they had the function and job that they have today, that the mitochondria and the chloroplasts lived on their own and commonly took shelter inside of larger host cells. There they provided the host cell with the nutrients that it needed to live, and in return the host cell gave the cells a protected place to live. Eventually the host cell, the mitochondria, and chloroplast cells became dependent on each other for survival. Symbiosis is when two different species, in this case the host cells and the mitochondria and chloroplast cells, both benefit from living in unison together and is where this theory …show more content…
They build protein by attaching an amino acid to another amino acid. Whenever a cell is in need of producing a protein, it looks for its ribosomes to get the job done. Lysosomes are organelles in a cell that hold all of the enzymes made throughout the cell. They are created by the rough endoplasmic reticulum, sent to the Golgi apparatus and then finally become lysosomes. Their main function is to float around the cell and when the cell eats or consumes energy, the lysosomes burst into action to consume the energy. Even though lysosomes jobs are to break down other energy and organelles in the cell, it doesn't break down the cell's membrane. The Golgi apparatus looks similar to the rough ER yet they are two completely different organelles. Its main function is to create complex molecules using numerous simple molecules that it has gathered from the cell. The Golgi apparatus is the organelle that creates lysosomes and other vesicles that are stored in the cell until they need to be used. It is unsure of where it evolves from but it is made of up a series of overlapping plate-like membrane, called