There are many different types of APIs for operating systems, applications or websites. Windows, for example, has many API sets that are used by system hardware and applications â when you copy and paste text from one application to another, it is the API that allows that to work.
Function of the Nucleolus. Ribosomes are made of two subunits, a large and a small. Each subunit is manufactured separately in the nucleolus. The proteins needed to make them enter the nucleus through pores in the nuclear membrane. The rRNA is made in the nucleolus itself.ibosomes are made of two subunits, a large and a small. Each subunit is manufactured separately in the nucleolus. The proteins needed to make them enter the nucleus through pores in the nuclear membrane.
Nucleolus Function. The nucleolus is one of the most important organelles of eukaryotic cells. Its main function is producing and assembling subunits which form ribosomes. Different functions performed by the nucleolus are listed in the article.he chains of RNA and DNA are the structural components of nucleolus. It is composed of granular and fibrillar components. The fibrillar components are categorized into fibrillar centers and dense fibrillar component. This type of structural organization of nucleolus is found in eukaryotic cells.