The Rough Endoplasmic Reticulum (RER) is one of two types of endoplasmic reticulum, along with the Smooth Endoplasmic Reticulum. The RER is responsible for the transport and modification of proteins.
The RER has a rough appearance due to the presence of ribosomes on its surface. These ribosomes are responsible for the translation of mRNA into proteins.
The RER is also responsible for the assembly of proteins. Proteins that are destined for secretion or for insertion into the plasma membrane are assembled in the RER.
The RER is the site of protein glycosylation, which is the addition of sugar molecules to proteins. This modification is necessary for the proteins to be transported to their final destination.
The RER is also the site of protein phosphorylation, which is the addition of a phosphate group to a protein. This modification is necessary for the protein to be active.
Contents
- 1 What is an interesting fact about rough ER?
- 2 What does rough endoplasmic reticulum do?
- 3 What 2 things does RER make?
- 4 What are the 3 main functions of the endoplasmic reticulum?
- 5 How big is rough ER?
- 6 How many rough endoplasmic reticulum are in a cell?
- 7 What would happen if the rough ER stopped working?
What is an interesting fact about rough ER?
Rough ER, also known as the sarcoplasmic reticulum, is a type of endoplasmic reticulum. It is responsible for the transport and storage of calcium ions. Rough ER is distinguished from smooth ER by the presence of ribosomes on its surface. This allows it to synthesize proteins. Rough ER is also responsible for the transport of lipids and cholesterol.
What does rough endoplasmic reticulum do?
The rough endoplasmic reticulum, or ER, is a type of organelle found in the cytoplasm of cells. It is responsible for a variety of tasks, including the synthesis of proteins and lipids, the transport of proteins and lipids to other organelles, and the detoxification of poisons and other harmful substances. The ER is also involved in the folding of proteins into their correct three-dimensional shapes.
What 2 things does RER make?
The RER, or Réseau Express Régional, is a system of high-speed trains in France that connects the country’s major cities. There are two things that the RER makes: it provides fast and efficient transportation between cities, and it connects the suburbs of Paris to the city center.
The RER was created in the 1970s as a way to better connect the suburbs of Paris to the city center. The trains travel at high speeds and make few stops, so they are able to cover a large distance in a short amount of time. The RER also connects to the Paris Metro, which makes it easy to get around the city.
The RER is also a great way to travel between different cities in France. The trains make few stops, so they are able to cover a large distance in a short amount of time. This makes the RER a great way to travel between cities like Paris and Lyon, or Paris and Marseille.
What are the 3 main functions of the endoplasmic reticulum?
The endoplasmic reticulum (ER) is a cell organelle that is found in both plant and animal cells. It has three main functions: protein synthesis, lipid synthesis, and calcium storage.
Protein synthesis is the process of creating proteins from amino acids. The ER is responsible for synthesizing most of the proteins that are found in the cell. It does this by assembling the proteins from their component parts.
Lipid synthesis is the process of creating lipids from fatty acids. The ER is responsible for synthesizing most of the lipids that are found in the cell. It does this by assembling the lipids from their component parts.
Calcium storage is the process of storing calcium ions. The ER is responsible for storing most of the calcium ions that are found in the cell. It does this by assembling the calcium ions from their component parts.
How big is rough ER?
Rough ER is one of the most important parts of the cell. It is the site of protein synthesis and lipid metabolism. It is also the site of Ribosome synthesis. Rough ER is about 1.5 micrometers in diameter.
How many rough endoplasmic reticulum are in a cell?
Endoplasmic reticulum (ER) is a membrane-bound organelle found in the cytoplasm of eukaryotic cells. The ER has two types of membrane: the outer smooth ER and the inner rough ER. The rough ER is studded with ribosomes, which are responsible for protein synthesis.
The number of rough ER in a cell varies depending on the type of cell. For example, a liver cell has more rough ER than a muscle cell. The rough ER is involved in a variety of cellular processes, including protein synthesis, lipid metabolism, and calcium storage.
What would happen if the rough ER stopped working?
The rough endoplasmic reticulum (ER) is a key organelle in the cell. It helps to produce and fold proteins, among other things. If the rough ER stopped working, the cell would not be able to produce the proteins it needs to survive. This could lead to cell death, and eventually organ failure.