What is the main function of the smooth endoplasmic reticulum?
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.
What is the function of smooth endoplasmic reticulum quizlet?
One of the primary functions of the Smooth Endoplasmic Reticulum is to produce and move lipids, an essential component of a cell’s outer membrane, and steroids.
What is the example of smooth endoplasmic reticulum?
Among the steroids produced by the SER in animal cells are the sex hormones of vertebrates and the various steroids secreted by the adrenal glands. The cells that synthesize and secrete these hormones, for example, the cells in the testes and ovaries are rich in the smooth endoplasmic reticulum.
What is the function of endoplasmic reticulum?
The endoplasmic reticulum (ER) is a large, dynamic structure that serves many roles in the cell including calcium storage, protein synthesis and lipid metabolism. The diverse functions of the ER are performed by distinct domains; consisting of tubules, sheets and the nuclear envelope.
What is the structure and function of smooth endoplasmic reticulum?
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 purpose of rough and smooth endoplasmic reticulum?
The rough ER, studded with millions of membrane bound ribosomes, is involved with the production, folding, quality control and despatch of some proteins. Smooth ER is largely associated with lipid (fat) manufacture and metabolism and steroid production hormone production. It also has a detoxification function.
What are the three forms of smooth endoplasmic reticulum?
The endoplasmic reticulum may occur in the following three forms:
- Lamellar form or cisternae.
- Vesicular form or vesicle and.
- Tubular form or tubules.
What is the difference between rough and smooth endoplasmic reticulum?
The main difference between these two terminologies is that the Smooth Endoplasmic Reticulum is known for stocking the lipids and proteins. It is not bounded by ribosomes. Whereas, the Rough Endoplasmic Reticulum is bounded by the ribosomes and also stores proteins.
What does the rough endoplasmic reticulum do?
The rough endoplasmic reticulum is responsible for the manufacturing of secretory proteins and membranes. The synthesis of proteins in the rough endoplasmic reticulum is carried out by ribosomes , and the actual process of protein synthesis is referred to as translation.
Does the smooth ER make proteins?
The smooth ER does not have ribosomes on its surface. It makes up proteins and lipids that get exported by the cell. The smooth ER also controls the level in the muscles and detoxifies poisons, alcohol, and. drugs.
What is the function of endoplasmic rectum?
The functions of the endoplasmic reticulum also include the transport of protein molecules, which are moved along the cytoskeleton toward their appropriate place inside the cell, through tiny transporting systems called vesicles.
Does the endoplasmic reticulum contain enzymes?
The smooth endoplasmic reticulum also contains the enzyme glucose-6-phosphatase, which converts glucose-6-phosphate to glucose, a step in gluconeogenesis. It is connected to the nuclear envelope and consists of tubules that are located near the cell periphery. These tubes sometimes branch forming a network that is reticular in appearance.
