What does the smooth ER do with lipids?
The smooth endoplasmic reticulum functions in many metabolic processes. It synthesizes lipids, phospholipids as in plasma membranes, and steroids. Cells that secrete these products, such as cells of the testes, ovaries, and skin oil glands, have an excess of smooth endoplasmic reticulum.
Why does the SER produce lipids?
Lipids are made by enzymes embedded in the membrane of the SER. That’s because they have hydrophobic parts that don’t like the watery inside of the organelle. Meanwhile, the hydrophilic parts of the fats face into the cisternal space.
Does SER help in lipid synthesis?
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 function of SER in liver cells of vertebrates?
SER in the liver of vertebrates helps in detoxification . It metabolizes various toxic and poisonous substances such as drugs , aspirin , insecticides , petroleum products and pollutants . These toxic substances make their entry in animal’s body through food , air , and water .
What does ER RER and SER stand for?
The ER can be classified in two functionally distinct forms: smooth endoplasmic reticulum (SER) and rough endoplasmic reticulum (RER).
How does the SER work?
Through a combination of direct financial assistance and contracts with a network of non-profit organizations such as the Salvation Army and local Community Action Organizations, SER helps low-income households meet emergency needs such as: Heat & Utilities. Home Repairs.
What is SER responsible for?
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 …
How does the smooth ER make lipids?
Organ systems which produce many proteins have cells with a large amount of rough endoplasmic reticulum. The smooth endoplasmic reticulum plays a major role in synthesizing lipids by means of enzymes embedded in these smooth membranes.
What is SER biology?
Which of the following is a function of SER?
The functions of SER can vary to an extent depending on the type of cell. More commonly, it is concerned with carrying out certain metabolic processes. Smooth Endoplasmic Reticulum (SER) is mainly concerned with the synthesis of carbohydrate and lipids, and sometimes, with their metabolism. Was this answer helpful?
What are the functions of lipids?
Lipids designate fats, oils, steroids and waxes found in living organisms. Lipids serve multiple functions across species, for energy storage, protection, insulation, cell division and other important biological roles. Structure of Lipids
Are lipids studied at the level of proteins?
Currently, lipids are not studied at the level of proteins and are therefore less understood. Much of the current lipid classification relied upon chemists and biophysicists, with an emphasis on structure rather than function. Additionally, it has been challenging to tease out lipid functions because of their tendency to combine with proteins.
What is the role of lipids in myelination?
Figure 5.3. 1: Lipids serve as signaling molecules; they are catalysts of electrical impulse activity within the brain. Nerve response in myelinated neurons (right) propagate faster than in unmyelinated neurons (left). Myelin is a mixture of proteins and phospholipids that insulates nerves.
What is the structure of lipid?
Lipids are the polymers of fatty acids that contain a long, non-polar hydrocarbon chain with a small polar region containing oxygen. The lipid structure is explained in the diagram below: