the plant cell :: essays research papers

The Plant CellCell WallSize close to 1 Basic federal agency* Hold the shape of the cellphone.* Strengthen the cell. screening the cell tissue layer of the plant cell, there is the cell groyne. The cell seawall is composed of twain layers of rigid, hard cellulose embedded in compounds like pectin and lignin. Pores in the cell wall allow molecules to pass finished. The cell wall has two parts. The primary cell wall is trunked during the growth of the cell. After the cell has stopped growing, a secondary cell wall forms. This secondary wall is made of lignin and cellulose, woven together tightly, to prevent further growth and to form and strong protective barrier.CytoplasmSize UnmeasurableBasic Function* Helps dissolve waste products* Creates a "medium" for vesicles to travel through* back up in cell metabolism* Serves as a home for the cytoskeleton.The cytol is the jelly-like material that makes up much of the cell. It is 80% water and usually conduct in color. It a lso contains many salts. The liquid portion is referred to as cytosol. In fact, "cytoplasm" means "cell substance." The cytoplasm is also the home of the cytoskeleton, a network ofcytoplasmic filaments that are responsible for the movement of the cell. The cytoplasm is eternally moving and churning due to cytoplasmic streaming.Golgi ApparatusSize in the midst of 2 and 3Basic Function* Serves as "processing optic" for cell.* Packages and processes new proteins.* Prepares proteins for secretion or storage.The Golgi Apparatus is a series of laden membranes in the cytoplasm that packages proteins for secretion or storage in vesicles. internal the membranes are sacs of fluid or gel-like substances. The Golgi Apparatus takes proteins in transport sacs from the endoplasmic reticulum and sends it through a series of these membranes. The proteins are then "modified" as they pass from membrane to membrane. After the vesicle of proteins has finished its trip through the Golgi Apparatus, it buds off the organelle in a Golgi sac, ready to be stored or transported to other parts of the body.Cell MembraneSize 7 to 8 NM (nanometers)Basic Function* Controls what enters and exits the cell.* Separates cell from outer environment.On the international of all cells, there is a layer of protein and lipid (fat) called the cell membrane or the plasma membrane. This membrane is found in ALL cells. The membrane is selectively permeable, meaning it allows some molecules to enter and some not to. The membrane allows molecules in through two forms