What is the structure of the rough and smooth endoplasmic reticulum?

What is the structure of the rough and smooth endoplasmic reticulum?

The smooth ER is a continuous extension of the rough ER, located more distally from the nucleus. Whereas the rough ER is shaped like flattened hollow pancakes in many cell types, the smooth ER is usually more tubular in structure, forming a lacelike reticulum.

What is the structural difference between rough endoplasmic reticulum and smooth ER quizlet?

Rough endoplasmic reticulum is covered in ribosomes and is involved in the synthesis and production of proteins. Smooth endoplasmic reticulum has no ribosomes and is involved in the production of enzymes and lipids. What is cytoplasm? Identify 2 functions of the cell membrane.

What is the structure of endoplasmic reticulum?

The general structure of the endoplasmic reticulum is a network of membranes called cisternae. These sac-like structures are held together by the cytoskeleton. The phospholipid membrane encloses the cisternal space (or lumen), which is continuous with the perinuclear space but separate from the cytosol.

Which of the following functional differences between the rough and smooth endoplasmic reticulum is explained by the structural differences?

Which of the following functional differences between the rough and smooth endoplasmic reticulum (ER) is explained by the structural differences between them? Rough ERER can synthesize and package proteins for export, and smooth ERER cannot.

What is the function of the 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 rough endoplasmic reticulum function?

Narration. The endoplasmic reticulum can either be smooth or rough, and in general its function is to produce proteins for the rest of the cell to function. The rough endoplasmic reticulum has on it ribosomes, which are small, round organelles whose function it is to make those proteins.

What is the structure and function of endoplasmic reticulum?

The endoplasmic reticulum (ER) is the largest membrane-bound organelle in eukaryotic cells and performs a variety of essential cellular functions, including protein synthesis and processing, lipid synthesis, and calcium (Ca2+) storage and release.

Are smooth ER and rough ER connected?

The rough and smooth ER are usually interconnected and the proteins and membranes made by the rough ER move into the smooth ER to be transferred to other locations. Some proteins are sent to the Golgi apparatus by special transport vesicles.

What is the difference between rough and smooth ER in terms of their function?

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 functions of rough ER?

The rough ER’s main function is to help form and store proteins, while the smooth ER store lipids, a type of fat. The whole reason why it’s called “rough” is because the ribosomes attaching to it give it a “bumpy” or “rough” appearance.

What is the rough ER job?

Most endoplasmic reticulum found in cells is rough ER. Due to its affiliation with the ribosomes , the general function of rough ER is to isolate and transport the proteins that have been constructed at the ribosomes. Many of the proteins that are made within a cell are not needed within that cell, but are actually secreted out of the cell.

What are the characteristics of the endoplasmic reticulum?

The endoplasmic reticulum (ER) is a network of flattened sacs and branching tubules that extends throughout the cytoplasm in plant and animal cells. These sacs and tubules are all interconnected by a single continuous membrane so that the organelle has only one large, highly convoluted and complexly arranged lumen (internal space).

What does rough ER mean?

Rough Endoplasmic Reticulum Definition. The rough endoplasmic reticulum (rough ER) is a part of the endomembrane system of the cell and a subset of the endoplasmic reticulum (ER).