Evolution
The Golgi, ER, and lysosomes are likely to have evolved as a result of the plasma membrane going through invagination. An increase in the overall volume of a cell would require the plasma membrane to fold in order to maintain a constant surface area to volume ratio. These folds may have led to the specialization of internal membranes to maintain communication with the environment. In the first stages of eukaryotic cell life, the membranes may have been interconnected and attached to the plasma membrane. Later on, as their functions diverged, the membranes may have become separate structures.
Read more about this topic: Endomembrane System
Famous quotes containing the word evolution:
“Analyze theory-building how we will, we all must start in the middle. Our conceptual firsts are middle-sized, middle-distanced objects, and our introduction to them and to everything comes midway in the cultural evolution of the race.”
—Willard Van Orman Quine (b. 1908)
“The more specific idea of evolution now reached is—a change from an indefinite, incoherent homogeneity to a definite, coherent heterogeneity, accompanying the dissipation of motion and integration of matter.”
—Herbert Spencer (1820–1903)
“The evolution of a highly destined society must be moral; it must run in the grooves of the celestial wheels.”
—Ralph Waldo Emerson (1803–1882)