Why do liver cells have a lot of smooth endoplasmic reticulum?

Large amounts of smooth ER are found in liver cells where one of its main functions is to detoxify products of natural metabolism and to endeavour to detoxify overloads of ethanol derived from excess alcoholic drinking and also barbiturates from drug overdose.

Does the liver have a lot of smooth ER?

Liver cells have an impressive network of smooth endoplasmic reticulum. Similarly, cells of the ovaries and testes, which produce the lipid-containing hormones estrogen and testosterone, contain large amounts of smooth endoplasmic reticulum.

Why do liver cells have ser?

Also, hepatocytes in the liver have abundant sER where it is involved in detoxification and glycogen metabolism. A specialized sER, the sarcoplasmic reticulum, is contained in striated muscle; calcium is stored in and released from the sarcoplasmic reticulum for induction of muscle contraction.

What is the function of the smooth endoplasmic reticulum SER )?

smooth endoplasmic reticulum (SER), meshwork of fine disklike tubular membrane vesicles, part of a continuous membrane organelle within the cytoplasm of eukaryotic cells, that is involved in the synthesis and storage of lipids, including cholesterol and phospholipids, which are used in the production of new cellular …

What is the role of smooth endoplasmic reticulum in the liver cells of vertebrates?

(c) Smooth endoplasmic reticulum in liver cells of vertebrates helps in detoxification. It metabolizes various toxic or poisonous substances such as drugs, aspirin, insecticides (DDT), petroleum products and pollutants. These toxic substances make their entry in animal’s body through food, air or water.

Which of the following cells contain smooth endoplasmic reticulum?

Cells that secrete these products, such as cells of the testes, ovaries, and skin oil glands, have an excess of smooth endoplasmic reticulum. The smooth endoplasmic reticulum also carries out the metabolism of carbohydrates and steroids. In muscle cells, the smooth endoplasmic reticulum regulates calcium ion storage.

What is the function of Ser?

sER is not involved in protein synthesis. Its main function is the synthesis of lipids, steroids, and carbohydrates, as well as the metabolism of exogenous substances, such as drugs or toxins.

What is the role of smooth endoplasmic reticulum in the liver cells of vertebrates animals?

What diseases are caused by the smooth endoplasmic reticulum?

There is accumulating evidence implicating prolonged ER stress in the development and progression of many diseases, including neurodegeneration, atherosclerosis, type 2 diabetes, liver disease, and cancer.

How does the structure of the smooth endoplasmic reticulum relate to its function?

The smooth endoplasmic reticulum comprises tube-like structure located near the cell periphery. These tubules or tubes sometimes branch forming a network that is reticular in appearance. The network of smooth endoplasmic reticulum allows for an increased surface area to be devoted to storage of key enzymes.

What is the role of SER in liver cells of vertebrates Class 9?

Class 9 Question Besides the usual function of synthesizing lipids and fatty acids, the SER in the liver detoxify drugs and convert them to less toxic substances which are then readily eliminated through the excretory organs.