write the function and difference between ser and rer in a plant cells ??
Answers
Answer:
The most basic difference between RER and SER is the presence of ribosomes. When ribosomes attach to the surface of an ER, it gives a characteristic rough appearance; hence it is called Rough ER. On the other hand, a smooth ER does not have ribosomes on its surface.
Funtion of SER and RER :
✠ Smooth Endoplasmic Reticulum Function :
⛤ Smooth ER is responsible for the synthesis of essential lipids such as phospholipids and cholesterol.
⛤ Smooth ER is also responsible for the production and secretion of steroid hormones.
⛤ It is also responsible for the metabolism of carbohydrates.
⛤ The smooth ER store and release calcium ions.
⛤ These are quite important for the nervous system and muscular system.
✠ Rough Endoplasmic Reticulum Function :
⛤ The majority of the functions of rough ER is associated with protein synthesis.
⛤ Rough endoplasmic reticulum also plays a vital role in protein folding.
⛤ Also ensures quality control (regarding correct protein folding).
⛤ The second most important function after protein synthesis and protein folding is protein sorting.
________________________________
Difference between SER and RER :
✠ Smooth Endoplasmic Reticulum Difference :
⛤ It does not have ribosomes on its membrane.
⛤ It is formed of vesicles and tubules.
⛤ It synthesises glycogen, lipids and steroids.
⛤ It is peripheral and may be connected to plasmalemma.
⛤ It develops from rough endoplasmic reticulum.
✠ Rough Endoplasmic Reticulum Difference :
⛤ It possesses ribosomes attached to its membrane.
⛤ It is formed of cisternae and a few tubules.
⛤ It participates in the synthesis of enzymes and proteins.
⛤ It is internal and connected with the nuclear envelope.
⛤ It might develop from the nuclear envelope.
Hope Its Help Uhh :)~