Quick Answer: What Is The Function Of RER Class 9?

What is the main function of lysosomes?

A lysosome is a membrane-bound cell organelle that contains digestive enzymes.

Lysosomes are involved with various cell processes.

They break down excess or worn-out cell parts.

They may be used to destroy invading viruses and bacteria..

What is the function of RER?

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 are the functions of nucleus class 9?

The nucleus has 2 primary functions:It is responsible for storing the cell’s hereditary material or the DNA.It is responsible for coordinating many of the important cellular activities such as protein synthesis, cell division, growth and a host of other important functions.

What is the main function of ribosome?

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 main difference between SER and RER?

Difference between Smooth and Rough Endoplasmic ReticulumRough Endoplasmic Reticulum (RER)Smooth Endoplasmic Reticulum (SER)It is internal and connected with the nuclear envelope.It is peripheral and may be connected to plasmalemma.Ribophorins are present and help ribosomes attach to ERDevoid of Ribophorins.6 more rows

What is the function of the rough endoplasmic reticulum quizlet?

What are RER? Involved in the synthesis of proteins and also a membrane factory for the cell.

What RER means?

respiratory exchange ratioThe respiratory exchange ratio (RER) is the ratio between the amount of carbon dioxide (CO2) produced in metabolism and oxygen (O2) used. The ratio is determined by comparing exhaled gases to room air. … In general a mixed diet corresponds with an RER of approximately 0.8.

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

What is the difference between rough endoplasmic reticulum and smooth endoplasmic reticulum? 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’s the difference between rough and smooth ER?

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. … Smooth ER (SER) acts as a storage organelle. It is important in the creation and storage of lipids and steroids.

What is the function of rough endoplasmic reticulum Class 9?

Rough Endoplasmic Reticulum Function: The majority of the functions of rough ER is associated with protein synthesis. Rough endoplasmic reticulum also plays a vital role in protein folding. Also ensures quality control (regarding correct protein folding).

What is the function of smooth ER?

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 are the two main functions of endoplasmic reticulum?

The endoplasmic reticulum (ER) serves important functions particularly in the synthesis, folding, modification, and transport of proteins. Differences in certain physical and functional characteristics distinguish the two types of ER, known as rough ER (RER) and smooth ER (SER).

What is mitochondria class 9th?

Class 9 Biology Fundamental Unit of Life. Mitochondria. Mitochondria. Mitochondria are round “tube-like” organelles that provide energy to a cell in the form of ATP (Adenosine Triphosphate) for performing different chemical activities for the sustainance of life.

What is SER and RER?

Quick look. Rough ER (RER) is involved in some protein production, protein folding, quality control and despatch. It is called ‘rough’ because it is studded with ribosomes. Smooth E R (SER) is associated with the production and metabolism of fats and steroid hormones.

What is the structure of rough ER?

Rough endoplasmic reticulum is an organelle found in eukaryotic cells. Its main function is to produce proteins. It is made up of cisternae, tubules and vesicles. The cisternae are made up of flattened membrane disks, which are involved in the modification of proteins.