What are the characteristics of prokaryotes and eukaryotes

There are cells to verify eukaryotes, and there is no nucleus is the most fundamental difference between prokaryotes.

1.In terms of size: eukaryotes are larger, including animals, plants, fungi; Prokaryotes are smaller and include bacteria, cyanobacteria, actinomycetes, chlamydia, mycoplasma, and rickettsia;

2.In terms of composition: eukaryotes are composed of eukaryotic cells, and prokaryotes are composed of prokaryotic cells; Eukaryotic cells are complex, with a cell membrane (the outermost layer of the plant also has a cell wall), a cytoplasmic matrix, a nucleus (composed of a nuclear membrane, nucleolus and chromatin), and various organelles

Prokaryotic cells have a cell wall (only mycoplasma have no cell wall), a cell membrane, cytoplasm, and nucleomimetic (there is no structure such as a nuclear membrane, nucleolus, etc., and only one DNA), and organelles only have ribosomes.

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Analysis: Generally speaking, eukaryotes refer to their cells that are eukaryotic, that is, there is a fixed nucleus in the cell, and there is a nuclear membrane around it, such as plants, animals, and fungi (yeasts, molds) are eukaryotes; The cells of prokaryotes are prokaryotic cells, that is, there is no shaped nucleus in the cell, only one nuclear area without a nuclear membrane, such as bacteria, cyanobacteria, actinomycetes, mycoplasma, chlamydia, ricketta, etc., in addition to the difference in the nucleus, there are other differences, such as the composition of organelles in the cell, there are only ribosomes and DNA morphologies in the prokaryotic cell, prokaryotes are generally ring-shaped, eukaryotes are chain-shaped, the composition of the cell wall (with a cell wall), the prokaryotic is composed of peptidoglycan and lipopolysaccharides, Eukaryotes are cellulose or pectin.

The so-called single-celled organism is that the whole body is composed of a cell, and all the physiological activities of this organism are completed in this cell. For example: paramecium, amoeba, bacteria, etc.

In multicellular organisms, the body is composed of many cells, and these cells have different divisions of labor to complete the various physiological activities of the organism, and if one of the cells is removed, this cell cannot live independently.

Prokaryotes: bacteria (cocci, lactic acid bacteria, bacilli, spirochetes, acetic acid bacteria, etc.);

Actinomycetes (streptomycin).

Algae (cyanobacteria, coccus, trembling algae, Candida algae, hair cabbage).

Mycoplasma. Chlamydia.

Eukaryotes: plants, animals, fungi (yeasts, mushrooms, parasites, penicillins, etc.).