how many types of ER
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Answer:
GUI and CUI are two types of User Interfaces. GUI stands for Graphical
User Interface while CUI stands for Character User Interface. In this article we will be discussing the differences between these two interfaces and which one has advantages over the other.
User Interface : User Interface comprises of everything the user can use to interact with the computer. It is basically the means by which the user and computer system can interact using input and output devices.
GUI: GUI stands for Graphical User Interface. This is a type of user interface
where user interacts with the computer using graphics. Graphics include icons, navigation bars, images etc. Mouse can be used while using this interface to interact with the graphics. It is a very user-friendly interface and requires no expertise. Eg: Windows has GUI.
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The endoplasmic reticulum is a type of organelle found in eukaryotic cells that forms an interconnected network of flattened, membrane-enclosed sacs or tube-like structures known as cisternae. The membranes of the ER are continuous with the outer nuclear membrane.
The two types of endoplasmic reticulum are : Rough Endoplasmic Reticulum: Their main function is produce proteins in the cells and ribosomes are attached to their surface. Smooth Endoplasmic Reticulum: Their main function is to produce lipids and also detoxify toxins in the body in the liver and kidney cells.
Rough ER
Smooth ER
Rough endoplasmic reticulum has ribosomes embedded within its structure, giving a “rough” appearance. Smooth endoplasmic reticulum does not have these ribosomes, hence appear “smooth.”
Smooth Endoplasmic Reticulum Structure
The smooth endoplasmic reticulum, on the other hand, does not have ribosomes.
The smooth endoplasmic reticulum has a tubular form.
It participates in the production of phospholipids, the chief lipids in cell membranes and are essential in the process of metabolism.
Smooth ER transports the products of the rough ER to other cellular organelles, especially the Golgi apparatus.