EVERYDAY SCIENCE

SCIENCE

NERVOUS SYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Nissl,s granules inside the nerve cell are made of.
A
DNA
B
Proteins
C
RNA
D
Carbohydrates
Explanation: 

Detailed explanation-1: -A Nissl body, also known as Nissl substance and Nissl material, is a large granular body found in neurons. These granules are made up of rough endoplasmic reticulum (RER) with rosettes of free ribosomes, mRNA and are the site of protein synthesis.

Detailed explanation-2: -Nissl’s granules are particles seen within the cell bodies of neurons, consisting of rough endoplasmic reticulum and polyribosomes and are site of protein synthesis. They are rich in RNA and stain strongly with basic dyes.

Detailed explanation-3: -Nissl’s Granules are the substances found in the neurons which are nerve cells. These granules are very useful for protein synthesis and also help to transport these proteins to the part known as cyton.

Detailed explanation-4: -Because ribosomes are rich in ribosomal RNA, they are strongly basophilic ("base-loving"). The dense accumulation of membrane-bound and free ribosomes in Nissl bodies results in their intense coloration by Nissl stains, allowing them to be seen with a light microscope.

Detailed explanation-5: -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.

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