The Golgi apparatus is responsible for identifying, processing and packaging macromolecules. The Golgi apparatus does not create macromolecules, nor does it assist with the macromolecules' functions. Instead, it acts like a courier and simply transfers the macromolecules to the appropriate destination.Continue Reading
The Golgi apparatus is an organelle found in DNA-carrying eukaryotic cells. It is one of the largest structures inside the cell. The Golgi apparatus resembles a long, thin ribbon folded on top of itself to create a long, layered central part with curved edges on either end. These internal layers are known as the cisternae, and their size and shape depend on the type of cell. Cisternae found in animal cells typically have 10 to 20 layers, while the cisternae of single-cell organisms often have 60 layers.
The macromolecule enters the Golgi apparatus at one of the curved ends. It traces its way through the layers of cisternae while being sorted and refined by the Golgi apparatus. At the end of the cisternae maze, the macromolecule enters a transport vessel and is shipped to the appropriate destination.
According to a 2009 study by Daniel Ungar, malfunctions in the Golgi apparatus and its cisternae are tied to inheritable diseases, such as muscular dystrophy, as well as diabetes and several forms of cancer.Learn more about Cells
Proteins that are moving from the endoplasmic reticulum to the Golgi apparatus travel inside of COPII-coated transport vehicles. According to the fourth edition of Molecular Biology of the Cell on the NCBI website, the transport vesicles are pinched off from a region of the endoplasmic reticulum known as ER exit sites. These exit sites do not have membrane-bound ribosomes that would otherwise retard the process.Full Answer >
According to Online Digital Education Connection, analogies for chloroplasts are power plants that imitate the function of chloroplasts in a plant cell to utilize solar energy or light in the processing of food for plant cells. Score Science lists solar energy plants as city analogies for chloroplasts.Full Answer >
The Golgi tendon organ is an organ that can sense changes in muscle tension and send information to the brain about them. It can be found where the skeletal muscle fibers join the tendons. It's made up of nerves and strands of collagen, an elastic protein.Full Answer >
The Golgi apparatus is a cellular organelle that is found in most eukaryotic cells, including human cells. It was first identified in 1897 by Camillo Golgi and was named after the physicist the following year.Full Answer >