Skip to main content

Endoplasmic reticulum

Mean:
        Endo                   inside
        Plasma                cytoplasm or cell
        Reticulum          network
Definition:
                  "it is a double membrane-bounded structure present in the network from throughout the cytoplasm of the eukaryotic cell".
Discovery: 
                fist discovered by o reported by the porter in 1945
Chemical Composition:
                                      chemically composed of proteins, lipids and little amount of cholesterol.
Types:
          on the base of physical structure, they have two types.
1-Rough Endoplasmic Reticulum:
Definition:
"it is the type of E.R to which ribosome are attached together and appears granular and rough in the form"
Diagram: 
Image result for rough endoplasmic reticulum
2-Smooth Endoplasmic Reticulum:
Definition:
                "it is the type of E.R to which ribosomes are not attached and appeared smooth in the form".
Digram:

Image result for smooth endoplasmic reticulum


Function:
1-They help in the transport of material within the cell.
2-RER  involved in protein synthesizes.
3-SER helps in detoxification of drugs in the liver.
4-SER helps in liver metabolism.
5-SER plays a role in muscle contraction.





Comments

Post a Comment

Popular posts from this blog

Digestive System

Definition:                   "The mechanical and chemical break down of large, complex, non-diffusible food into small, simple, diffusible and soluble form is known as Digestion". 1)Mechanical digestion:                                       "The break down of food without the help of any chemical or enzyme action is called mechanical digestion". 2)chemical Digestion:                                    "The break down of food with the help of digestive juices or enzyme present in the digestive tract".                           Digestiv e System:                               "it is the system in which the organs are involved in the process of the digestive system or absorption. Part,s:           There are two different parts,s of the digestive tract. 1)Alimentary Tract:                                The food passes from that tract. It starts from the mouth and ends at the anus. It is consists of a mouth, pharynx, esophagu
Post a Comment
Read more

weight Loss

There are some stipes that are following you will make your body very smart into one weak. You will try it you will get the result 100%. 1:  walk up to 1- 2 km.                                    2: jogging up to 3km.                                   note : if you walk on the side of the river, it is the best. 3: walk up to 1 km back. 4: run up to 2 km.                               
Post a Comment
Read more