Pseudopodia are temporary outgrowths of the cytoplasm in unicellular organisms that do not have a specific location in the cell and are formed during its movement. For example, when an amoeba moves, it throws out a pseudopodia, which ensures the movement of the cell. Pseudopodia can also be formed in multicellular organisms. So, in the process of cell movement, it forms a pseudopodia for movement. Pseudopodiums are also called pseudopodia, but this name is outdated.
Pseudopodia are temporary, non-permanent projections in eukaryotic organisms that perform the functions of movement, food capture and cell defense. In Latin, “pseudo” is translated as “false.” They were first named and described by Maurice Cuvier in 1812, but the name stuck with biologists towards the end of the 19th century.
Pseudopodia is the process of cell formation and growth, which is characteristic of amoebas, streptomycetes, leishmania and some others. These structures play an important role in the movement and capture of food. The surface or top of these formations is covered with many small villi, which together form a mucous sac. Sometimes the pseudopodium is covered with hundreds of villi. Using this inner side of the pseudopodia, microorganisms can capture bacteria or amorphous substances: protozoan cysts, starch granules, mineral particles and dust. The pseudopodia shell itself consists of a bilayer (double layer) with cell walls. The transverse dimension of cells can reach parameters from 3 to 5 micrometers.
Before describing all the above-mentioned properties of this structure, it is necessary to study not only the structure and components, but also the origin of such an element as biological pseudopodia, which is an accumulation and proliferation of amoebocytes. The internal space of the bag is filled with a special transparent solution consisting mainly of water and polysaccharides. The pseudopodium, which is located at the outer angle, is called hyaline, and the one on the other side is called drip. The growth of pseudopodia depends on the activity of cell reproduction. The greatest number can be observed during the emergence of the old nucleus inside the primary sac in order to begin double-membrane division. Each of these cells strives to restore its viability by absorbing others, that is, also with the help of production
Pseudopodia is a special cell organelle. It performs the function of movement. In its structure, the cell resembles an architectural outline with a thin center in the center and denser edges on the sides. In the process of moving through the intercellular space, this cell captures a particle of the environment and binds them into a pseudopodia. The surface shape of this cell interacts with the cell's surroundings, allowing it to move. Some pseudopodia possess specialized supporting cells that facilitate movement through tough materials. For example, in amoebas this is an effective way of moving through soil and rock embankments. The pseudopodia can be thought of as a flexible arm that rotates the cell like a palm tree.
In addition to the fact that the pseudopodia is necessary for movement, it plays an important role in feeding the cell and dividing the contents inside it. Thus, the appearance of pseudopodia is a key moment not only for the simple movement of the cell in space, but also for some of its basic functions. Larger pseudopodia serve the purpose of capturing materials such as bacterial DNA or enzymes so that they can be transferred into cells. This allows the other cell to develop and reproduce. Small pseudopodia allow bacteria to move within tissues. They are also used in the metabolism between bacteria, when different cells transfer their particles to each other using pseudopods.
Pseudopods are fiber-like, branching protein structures found in the cell wall. Each cell-specific protein works to form a small number of such outgrowths, so hundreds of thousands or millions of these structures are simultaneously present in the plant organism.