AGRANULAR ENDOPLASMIC RETICULUM Meaning and
Definition
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The Agranular Endoplasmic Reticulum, also known as smooth endoplasmic reticulum (SER), is a network of interconnected membranous tubules found within eukaryotic cells. It is characterized by the absence of ribosomes on its surface, distinguishing it from the other form of endoplasmic reticulum, known as the granular endoplasmic reticulum or rough endoplasmic reticulum (RER).
The main function of the agranular endoplasmic reticulum is the synthesis and metabolism of lipids, including the production of phospholipids and cholesterol. It also plays a crucial role in the detoxification and storage of certain drugs and toxins in the body. Additionally, the SER is involved in the regulation of calcium ions, playing a vital role in muscle contractions and other cellular signaling processes.
The structure of the agranular endoplasmic reticulum consists of a network of tubules that are devoid of ribosomes. These tubules are interconnected with the rough endoplasmic reticulum and the nuclear envelope, facilitating the flow of membranes and substances between different cellular compartments.
Overall, the agranular endoplasmic reticulum is an essential organelle within cells, involved in various metabolic processes and crucial for maintaining cellular homeostasis. Its smooth surface, devoid of ribosomes, distinguishes it from the rough endoplasmic reticulum and allows it to carry out lipid metabolism, calcium regulation, and drug detoxification in the cell.
Common Misspellings for AGRANULAR ENDOPLASMIC RETICULUM
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