Cell parts and function-I have always heard that the nucleus is the brain of the cell. But why is it the brain ,and what are the major parts of the nucleus?
The nucleus is a large organelle. In fact, you can see the nucleus with a compound microscope.
Here it is inside a cheek cell.
I’m going to look at four main components of a nucleus and the role each part plays.
The nucleus is surrounded by a nuclear membrane. It is very similar to the cell membrane, and it is composed of two layers. It protects and houses the other parts of the nucleus.
You can also find ribosomes on the outside of the nuclear membrane.
Up next are nuclear pores. These are openings found on the nuclear membrane.
They allow items to move in and out of the nucleus. An example would be the mrna. It would travel through a nuclear pore to leave the nucleus.
Nucleoplasm This is a gel-like material found inside the nuclear membrane. You will find the DNA suspended in the nucleoplasm
Nucleolus. This is almost like a nucleus inside the nucleus. It has a very high concentration of DNA,
It is also the site of transcription which is the starting point of protein synthesis.
This is how the nucleus controls the cell. It has all the information on how to make stuff like proteins inside the cell. These proteins are used for many purposes inside the cell.
Ribosomes are also made at the nucleolus
All eukaryotic cells have a nucleus and bacteria and other prokaryotic cells do not have a nucleus.
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