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What are bacteria and fungi?
Bacteria and fungi both have a word "bacteria" in their names, both belong to microorganisms, but there are many differences between them in terms of biological type, structure, size, mode of proliferation and composition of name:
1. Differences in biological types:
Bacteria belong to prokaryotes because they don't have nuclei formed by nuclear membrane. Bacteria are all composed of single cells and are single-celled organisms.
Fungi belong to eukaryotes with nuclei formed by nuclear membrane. Fungi are both single-celled organisms composed of a single cell (such as yeast) and multicellular organisms composed of multiple cells (such as edible fungi, molds, etc.).
2. Different cell structures:
Bacteria and fungi both have cellular structures and belong to cellular organisms. In their cellular structures, both bacteria and fungi have cell walls, cell membranes and cytoplasm. However, there are many differences, which are specifically shown as follows:
One is the difference in the composition of the cell wall: bacterial cell wall is mainly composed of peptidoglycan, while fungal cell wall is mainly composed of chitin.
Second, the composition of organelles in the cytoplasm is different: bacteria have only one organelle, ribosome; In addition to ribosomes, fungi also have endoplasmic reticulum, Golgi apparatus, mitochondria, centrosomes and other organelles.
Third, bacteria have no formed nucleus, only pseudonucleus; Fungi have.
Fourth, bacteria do not have chromosomes, their DNA molecules exist alone; The DNA in a fungal nucleus binds to proteins to form chromosomes (chromatin).
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