How exactly are ribosomes made? the complicated way.

[doc3232]

---

Members do not see this ad.

I am completely lost here. not sure about anything.
So I know the basic fact that ribosomes are assembled in the nucleolus.
I read an old thread, but didn't get it.
So rRNA is first transcribed in the nucleolus then it goes into the cytoplasm where it is translated?
Then it goes back in the nucleolus to form the ribosomal subunit?
Then the two subunits enter the cytoplasm where they react with each other?
I also read that the rRNA combines with proteins to form ribosomes.

Thanks

 

[doc3232]

bump, anyone?

 

[xaznxcountx]

I am completely lost here. not sure about anything.
So I know the basic fact that ribosomes are assembled in the nucleolus.
I read an old thread, but didn't get it.
So rRNA is first transcribed in the nucleolus then it goes into the cytoplasm where it is translated?
Then it goes back in the nucleolus to form the ribosomal subunit?
Then the two subunits enter the cytoplasm where they react with each other?
I also read that the rRNA combines with proteins to form ribosomes.

Here's what I found from this website: " Because protein synthesis is so important to cells, there are large numbers of ribosomes found throughout cells often numbering in the hundreds or thousands. In eukaryotic cells, three of the four ribosomal RNA strands are synthesized in the nucleolus, a structure in the nucleus. The fourth ribosomal RNA strand is synthesized outside of the nucleolus and then transported into the nucleolus for ribosome assembly. Ribosomal proteins enter the nucleolus and combine with the four ribosomal RNA strands to create the large and small subunits which are two ribosomal structures. The two subunits unite outside the nucleus just before the ribosome begins to manufacture proteins."

Hope that helps. Good luck studying 👍

 

[doc3232]

Thanks, got it now.

 

[tawaqul]

check out my bio animations thread, it has a really great protein synthesis one.