What is the main function of nissl granules?

Nissl’s granules are of the rough endoplasmic reticulum (RER) and contain free ribosomes. They are responsible for the synthesis of proteins which flow along the dendrites and the axon and replace the proteins which are broken down during cellular activity.

What does the nissl bodies of a neuron do?

The functions of Nissl bodies are thought to be the same as those of the rough endoplasmic reticulum in general, primarily the synthesis and segregation of proteins. Similar to the ergastoplasm of glandular cells, Nissl bodies are the main site of protein synthesis in the neuronal cytoplasm.

Where are nissl granules found in neuron?

Hint: Nissl’s granules are the large granular body found in Neurons. Nissl’s granules are present only in the cytoplasm of the cell body of neurons. Complete answer: These granules are rough endoplasmic reticulum with rosettes of free ribosomes that synthesize proteins in the body of the neuron.

What are nissl’s granules give their functions Class 9?

A Nissl’s granules are rough endoplasmic reticulum (RER) with free ribosomes attached to their walls. The main function of these ribosomes is protein synthesis. Thus, Nissl’s granules help in protein synthesis and provides proteins to the cyton.

Why Nissl granules are absent in axon?

– Axon cannot synthesize its protein hence it depends on soma. – The Soma also called a cell body of a neuron contains the nucleus and other structures common to living cells. – Small nerve cells of the central nervous system sometimes contain no Nissl bodies. – So, Nissl granules are absent in the axon.

What do Nissl granules represent under the electron microscope?

One of the characteristic features of neuronal morphology under the electron microscope is the Nissl substance which represents granular ribonucleoprotein particles attached to the endoplasmic reticulum.

How does Nissl stain work?

The Nissl substance (rough endoplasmic reticulum) appears dark blue due to the staining of ribosomal RNA, giving the cytoplasm a mottled appearance. Individual granules of extra-nuclear RNA are named Nissl granules (ribosomes). DNA present in the nucleus stains a similar color.

What used to be described as Nissl’s granules in a nerve cell are now identified as?

Mitrochondria
Question : What used to be described as Nissl granules in a nerve cell are now identified as. Mitrochondria.

What are nissl granules where are they located what are their function?

Nissl granules are the substances found in the neurons which are a large granular type of body. These granules are rough endoplasmic reticulum (RER) with rosettes of free ribosomes. These are very useful for protein synthesis and also help to transport these proteins to the part known as cyton.

Where are nissl granules found and what is their nature?

Nissl’s granules are found in neurons. They are made up of rough endoplasmic reticulum with plenty of ribosomes. So, their nature can be said as proteinaceous.

Why is nissl stain useful?

Nissl-staining is a widely used method to study morphology and pathology of neural tissue. The described method facilitates the mapping of immunocytochemical signals and makes possible the light microscopic examination of the innervation of neurons identified by their nuclear protein content.

Why is the nissl stain important?

This stain is commonly used to identify the neuronal structure in brain and spinal cord tissue. The Cresyl Violet method uses basic aniline dye to stain RNA blue, and is used to highlight important structural features of neurons.

What are Nissl’s granules?

Nissl’s Granules are the substances found in the neurons which are a large granular type of body. These granules are very useful for protein synthesis also help to transport these proteins to the part known as cyton.

What is the main function of Nissl bodies within neurons?

The main function of Nissl bodies within neurons is to aid in the production and dispersal of chemical substances such as proteins and peptides, as illustrated by Richard F. Thompson in his book “The Brain: A Neuroscience Primer.”. The structure of Nissl bodies makes them particularly adept…

What is the function of Nissl granules in endoplasmic reticulum?

, Student. Nissl granules are actually rough endoplasmic reticulum and they are called rough due to the presence of ribosomes in its walls. The main function of these ribosomes is protien synthesis and therefore nissl granules help in protien synthesis and provides protiens to the cyton.

What is the structure of Nissl bodies?

The structure of Nissl bodies consists of a granular and concentrated section of the endoplasmic reticulum. The Nissl substance that creates the bodies is made up of RNA, proteins, lipids and acid polysaccharides that aid in the creation of proteins. It is believed that the majority of proteins created by Nissl bodies are used intercellularly.