![]() ![]() Pilli helps bacterial cells to adhere strongly to host tissues. PiliCertain spiked structures are found inside the bacterial cell and often project onto cell surfaces. The number of flagella varies in number and also in their location. However, unlike in eukaryotic cells, DNA is not enclosed within the special structure, the nucleus or nuclear membrane.įlagellaFlagella are elongated structures that are used for locomotion. Nuclear material (DNA)Bacterial cells contain only DNA, which helps propagate new generations. The cell membrane of bacteria is also composed of two layers of phospholipid molecules that help in biosynthetic processes. This peptidoglycan arrangement is often used for antimicrobial study and production.Ĭell membrane or plasma membraneLike eukaryotic cells, bacterial cells also possess a cell membrane called the plasma membrane, which shows functions like other cells. The polysaccharide units present in the cell wall are crisscrossed, with peptide bonds acting as bridges. This capsule often plays an important role in preventing bacterial cells from phagocytosis.Ĭell wallUnderneath the capsule lies a peptidoglycan cell wall that offers a definite structure and shape to a bacterial cell. In synchrony with these features, a bacterial cell also shows the same characteristics, in addition to a few more which have been listed below.ĬapsuleOne of the main characteristic features of bacteria is the presence of a polysaccharide outer covering outside of the cell wall. Additionally, prokaryotes also exhibit a primate form of propagation through binary fission and not mitosis.Apart from size, prokaryotes also lack the presence of mitochondria and showcase the presence of cell walls, which are usually absent for animal cells.As stated earlier, the prokaryotes differ from the eukaryotic cells by their sheer small sizes (0.2-10µm).Like other prokaryotic cells, bacteria cells are also smaller and usually of various types (helical, spheroid, rod, etc.). Therefore, the cellular structure of bacteria is simpler than other organisms. Prokaryotic cells refer to primitive cells that lack a proper nucleus and other cell organelles than the modern-day cells. Bacteria are prokaryotes and unicellular organisms that lack certain cell organelles compared to their eukaryotic counterparts (check out the diagram of a bacterial vs plant cell below). ![]()
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