Why Do Vesicles Enter A Cell

serve as the site of lipid synthesis in the cell. The ER functions as the

One of the main manufacturing facilities within a cell. Consists of rough ER and smooth ER, they are physically connected but differ in structure. Consist of membrane-enclosed tubes and sacs within the cytoplasm. Rough ER, named for the ribosomes attached to its surface, make membrane and secretory proteins. One function of rough ER is to produce new membrane. Some products by rough ER are dispatched to other locations by transport vesicles.

Lysosomes – Lysosomes act as the digestive system of the cell. They are found in all parts of the cell. There are very powerful enzymes within lysosomes.

“This is the Endoplasmic Reticulum Family the Endos. They are a maze of organisms. There are so many they are even divided into two sections let me explain.”

The main function of the Endoplasmic Reticulum is to produce, store and transport proteins and lipid to most of the cell organelles. The Endoplasmic Reticulum is a large organelle that looks like sheets of folded membranes.

Lysosomes are specialized vesicles that are created by the Golgi body. Their role is to digest any worn out, excess or unwanted bodies within the cell. This could include bacteria or viruses as well as mitochondria which are no longer effective. To do this they contain an

They are very important in the synthesis and packaging of proteins. Some of those proteins might be used in the cell and some are sent out. The ribosomes are attached to the membrane of the ER. As the ribosomes builds the amino acid chain, the chain is pushed into the ER. When the protein is complete, the rough ER pinches off a vesicle. That vesicle, a small membrane bubble, can move to the cell membrane or the Golgi apparatus

The smooth endoplasmic reticulum is responsible for production and packaging of lipids and steroids. (Plant Cell Anatomy, n.d.)

The cell membrane consists of eight distinctive parts that each have their own unique structure and function. The phospholipid bilayer is an integral part of the cell membrane because it is the external layer of the cell membrane and composes the barriers that isolate the internal cell components and organelles from the extracellular environment. It is composed of a series of phospholipids that have a hydrophobic region and a hydrophilic region. These regions are composed of the hydrophilic heads and the hydrophobic tails of the phospholipids, this organization of the polar heads and nonpolar tails allows the heads of the cell to form hydrogen bonds with water molecules while the tails are able to avoid water. The phospholipid bilayer also has many important functions within the cell, it gives the cell shape, provides protection, and it is selectively permeable which allows it to only let very specific molecules pass through its surface. The phospholipid bilayer is an important structure because it prevents harmful and unwanted molecules from entering the cell and isolates organelles which helps to maintain the internal environmental homeostasis of the cell.

Exocytosis is the process of how hormones, digestive enzymes and lipids are released from the cell. Vesicles containing the product pinch off from the sacs of the golgi apparatus and move towards the plasma membrane. The vesicles then fuse with the plasma membrane and release the product outside the cell. (CGP, 2009) The cell membrane surrounds all living cells, and is the cell’s most important organelle. It controls how substances can move in and out of the cell and allows cell

This is a series of flattened, fluid-filled sacs stacked like pancakes. The Golgi apparatus is believed to package proteins for delivery to other organelles; it is also responsible for producing lysosomes.

Introduction: Cell membranes contain many different types of molecules which have different roles in the overall structure of the membrane. Phospholipids form a bilayer, which is the basic structure of the membrane. Their non-polar tails form a barrier to most water soluble substances. Membrane proteins serves as channels for transport of metabolites, some act as enzymes or carriers, while some are receptors. Lastly carbohydrate molecules of the membrane are relatively short-chain polysaccharides, which has multiple functions, for example, cell-cell recognition and acting as receptor sites for chemical signals.

The ER makes lipids, breaks down and packages proteins for the Golgi complex. The Golgi Complex processes and transports and proteins out the cell. (Nnpdf.org, 2016)

Many cells are filled with a complex network of tube like things known as the endoplasmic reticulum. The endoplasmic

which gets stored in the from of ATP for ready use. This process is also called