Question

Nissl granules are formed from

• A. RER
• B. SER
• C. DNA
• D. Golgi bodies

Answer 1

The correct option is A

RER

The correct option is A.

Explanation for the correct option:

Option A:

1. Nissl granule is the protein-forming machinery of the cell.
2. It includes electron-dense particles.
3. The staining approach is useful in restricting the cell body because it thoroughly can be located withinside the soma and dendrites of neurons, however, they are not present in the axon or axon hillock.
4. Nissl granules are also called the tigroid body, a condensed part of the cytoplasm of a nerve cell.
5. In our body, the massive granular mass is present in the nerve cell or neurons, so it is referred to as Nissl granules.
6. It is produced by a rough endoplasmic reticulum (RER) having rosettes of free ribosomes (polyribosomes) which together help in the formation of protein synthesis.

Explanation for the incorrect options:

Option B:

SER is particularly concerned with the synthesis of non-protein substances in lipids (glycerides, glycolipids, phospholipids, sterols, etc.).

Option C:

The DNA molecule consists of units referred to as nucleotides, and every nucleotide consists of 3 different components such as sugar, phosphate groups, and nitrogen bases.

Option D:

Golgi bodies are membrane-bound organelle present in the cytosol of the cell.

Final answer: Nissl granules are formed from RER.