National 5 Cell structure The functions of cell organelles Cells are microscopic building blocks of unicellular and multicellular living organisms.

In addition, studies investigating the structure–function relationships of MHC class II molecules have highlighted how single amino acid polymorphisms, particularly in intracellular domains, can ...

Nucleolus Chromosomes The cell nucleus is the site of many important biological functions of the eukaryotic cell. These processes include transcription, replication, splicing and ribosome biogenesis.