Sign Up. Create your account now. Signup with Email. Gender Male Female. Create Account. Already Have an Account? Answer to Question. Shiulie Ghosh Oct 01, Golgi Apparatus. Golgi apparatus is also known as the Golgi bodies or Golgi complex, which is a prominent organelle in a cell, especially in eukaryotic cells of both plants and animals.
It is an arrangement of fluid filled discs covered by a membrane, which is exactly same as the cell membrane. The terms complex or apparatus being used on Golgi bodies because of that. Golgi apparatus is considered as a part of the endomembrane system of cells, and it encases some of the important proteins and enzymes.
Golgi complex performs the packaging of proteins prior to sending those to the targets, and the further processing those proteins take place inside Golgi bodies. Each cell synthesizes many different molecules through different biochemical processes, especially during metabolism and anabolism. Thus, these molecules should be properly sorted, modified, packaged, and delivered at the right place at the right time.
Golgi apparatus is responsible for this purpose. Golgi apparatus carries out all these vital steps inside the cell. In addition to proteins, Golgi bodies process lipids, proteins, enzymes, and many other types of molecules. Moreover, Golgi bodies produce enzyme-filled lysosomes. Endoplasmic reticulum ER is one of the very important structures in a cell. RER comes with ribosomes present on the external surface, which gives it a rough appearance in the microscope.
The structure of the ER is a network of tubules and vesicles, and the surface of RER looks like an extension of the nuclear envelope. On the other hand, SER is located throughout the cytoplasm evenly. Functionally, ER is responsible for several functions within the cell including poison detoxification, anabolism aids in the construction of both proteins and lipids , and catabolic pathways of carbohydrate breakdown.
Hence, it works as a reserve of plasma membrane for both cells and organelles. Golgi bodies or Golgi apparatus are an arrangement of few fluid-filled dishes whereas ER is a network of tubules and vesicles. Therefore, this is the key difference between Golgi apparatus and endoplasmic reticulum.
Furthermore, Golgi apparatus sorts, modifies, and delivers the components in a cell whereas ER is more of a structurally aiding organelle for metabolic activities. A signal sequence on a growing protein will bind with a signal recognition particle SRP. How Are Organelle Membranes Maintained? What Does the Golgi Apparatus Do? Figure 2: Membrane transport into and out of the cell.
Transport of molecules within a cell and out of the cell requires a complex endomembrane system. What Do Lysosomes Do? Figure 3: Pathways of vesicular transport by the specific vesicle-coating proteins. The endomembrane system of eukaryotic cells consists of the ER, the Golgi apparatus, and lysosomes.
Membrane components, including proteins and lipids, are exchanged among these organelles and the plasma membrane via vesicular transport with the help of molecular tags that direct specific components to their proper destinations. Cell Biology for Seminars, Unit 3. Topic rooms within Cell Biology Close. No topic rooms are there.
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