Which cells have a nucleus? Which ones do not have a kernel? Functions of the nucleus in the cell.

The organic world is divided into cellular and non-cellular life forms, cellular life forms are divided into prokaryotes and eukaryotes according to the presence of a nucleus in the cell and some others. 1. Eukaryotes – nuclear organisms include all plants, animals, algae, fungi, etc. 2. Non-nuclear organisms are prokaryotes, they are bacteria such as cyanobacteria, spirochetes, symbiotic nitrogen-fixing bacteria of legumes, and discovered in the second half of the twentieth century a group of organisms – archaea, which are extremophiles. 3. 1-function – storage of hereditary information, i.e. chromosomes are contained inside the nucleus. 2-regulatory function, the DNA contained in the nucleus determines the work of the entire cell, 3-function is the synthesis of ribosomes, in the nucleus there is a seal called the nucleolus, in this place ribosomes are synthesized.