2 Nucleolous

Question 1

Function

Answer 1

Its main function is to rewrite ribosomal RNA (rRNA) and combine it with proteins to form incomplete ribosomes.

Question 2

Structure

Answer 2

• It’s made up of proteins and RNA
• Substructure within the nucleus (not an organelle) and is not surrounded by a membrane
• Usually only one or two may exist depending on the age of the cell
• The nucleolus can take up to about 25% of the total volume of the nucleus depending on the amount of protein the cell needs to produce

Question 3

Found

Answer 3

All eukaryotic cells contain a nucleolus which include: protists, fungi, animal, and plant cells.

Question 4

Why are they found in all eukaryotic cells?

Answer 4

Ribosomal proteins enter the nucleolus and combine with the four rRNA strands to create the two ribosomal subunits (one small and one large) that will make up the completed ribosome. They are then used to make proteins which is needed for many cell functions such as repairing damage or directing chemical processes. So concluding Ribosomes in eukaryotic cells mature in the nucleolus because they do not have the adaptations to do it in the cytoplasm like Prokaryotic cells.