What is the function of the rough ER?
What is the function of the rough ER?
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 does the rough ER do in a plant cell?
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 is a function of RER?
Functions of Rough Endoplasmic Reticulum. RER helps in the formation of proteins in the cell. The presence of ribosomes is actually responsible for the synthesis of the proteins by the RER. Thus RER is found in excess in those cells where protein synthesis takes place in a large amount.
What is the main function of the smooth ER in a plant cell?
The smooth endoplasmic reticulum, or smooth ER, is an organelle found in both animal cells and plant cells. An organelle is a sub-unit within a cell that has a specialized function. The main function of the smooth ER is to make cellular products like hormones and lipids.
What are the 3 main functions of the endoplasmic reticulum?
The ER is the largest organelle in the cell and is a major site of protein synthesis and transport, protein folding, lipid and steroid synthesis, carbohydrate metabolism and calcium storage [1–7].
What are the three functions of smooth endoplasmic reticulum?
Its main functions are the synthesis of lipids, steroid hormones, the detoxification of harmful metabolic byproducts and the storage and metabolism of calcium ions within the cell. The smooth ER is distinguished from the other parts of the endoplasmic reticulum by the absence of membrane-bound ribosomes.
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 difference between the smooth and rough ER?
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 is the full form of RER and SER?
The ER can be classified in two functionally distinct forms: the smooth endoplasmic reticulum (SER) and the rough endoplasmic reticulum (RER).
What is the meaning of rough ER?
Rough Endoplasmic Reticulum
What is difference between RER and SER?
The most basic difference between RER and SER is the presence of ribosomes….Difference between Smooth and Rough Endoplasmic Reticulum.
| Rough Endoplasmic Reticulum (RER) | Smooth Endoplasmic Reticulum (SER) |
|---|---|
| Provides proteins and lipids for Golgi apparatus. | Provides vesicles for cis-face of Golgi apparatus. |
What is the function of RER and SER Class 9?
2)Certain enzymes present in SER synthesise fat,steroids,cholesterol. 3)RER help in transport of protein which are synthesised by ribosomes on their surface. 5)It function as cytoplasmic framework providing a surface for some of the biochemical activities of the cell.
What is difference between RER and SER Class 9 in points?
The main difference lies between the SER and RER is the presence of ribosomes, as SER do not have ribosomes but RER have ribosomes. SER mainly produce and export lipids and protein and function for detoxification, while RER produces, secrete and export proteins and few hormones.
What do SER and RER have in common?
Explanation: The smooth endoplasmic reticulum (SER) is smooth, and the rough endoplasmic reticulum (RER) is rough. Both the SER and RER are large continuous sheets of membrane that fold back on themselves to form an enclosed space (lumen).
What are the similarities between rough and smooth ER?
There are two basic types of ER. Both rough ER and smooth ER have the same types of membranes but they have different shapes. Rough ER looks like sheets or disks of bumpy membranes while smooth ER looks more like tubes. Rough ER is called rough because it has ribosomes attached to its surface.
What are the three main parts of a cell?
A cell consists of three parts: the cell membrane, the nucleus, and, between the two, the cytoplasm.
What is the main function of ribosomes in the cell?
Ribosomes have two main functions — decoding the message and the formation of peptide bonds. These two activities reside in two large ribonucleoprotein particles (RNPs) of unequal size, the ribosomal subunits. Each subunit is made of one or more ribosomal RNAs (rRNAs) and many ribosomal proteins (r-proteins).
What is the structure and function of the mitochondrion?
Mitochondrion, membrane-bound organelle found in the cytoplasm of almost all eukaryotic cells (cells with clearly defined nuclei), the primary function of which is to generate large quantities of energy in the form of adenosine triphosphate (ATP).
What are the main function of ribosomes Class 9?
The important ribosome function includes: It assembles amino acid to form proteins that are essential to carry out cellular functions. The DNA produces mRNA by the process of DNA transcription. The mRNA is synthesized in the nucleus and transported to the cytoplasm for the process of protein synthesis.
What are 5 characteristics of mitochondria?
Because of this double-membraned organization, there are five distinct parts to a mitochondrion:
- The outer mitochondrial membrane,
- The intermembrane space (the space between the outer and inner membranes),
- The inner mitochondrial membrane,
- The cristae space (formed by infoldings of the inner membrane), and.
What is hypertonic solution Class 9 short answer?
A hypertonic solution is one that has a higher solute concentration outside the cell than inside. If a cell is placed in a hypertonic solution, the cell will shrink due to water osmotically moving out. The outside solution has higher soluble concentration than inside the cell.