The cell is a functional structural unit in living organisms. It is the first structural unit of organisms. The cell contains two main parts: the nucleus, the cytoplasm containing cytoplasmic organisms, and other non-living structures such as starch and fatty grains. In this article We will teach you how to multiply the cell. Cell proliferation The cells multiply by dividing or exponential growth, where each cell is divided into two similar cells in the composition and attributes, although this process results in multiple numbers of cells compared with the numbers of cells that were established for division, and therefore each generation of cells is The number of cells in the cell that preceded it is fully multiplied, and the rate of growth is usually fixed. This process is known as the cell life cycle. Phase I of the first-stage cell cycle, known as G1, in which the enzymes that are used to copy DNA are synthesized. The second phase is known as S: In this phase, two identical sets of pigments are produced. The third phase, known as G2: in which proteins are synthesized through which the cell is divided. The fourth phase, known as M: so that the nuclear division and cytoplasmic, and the cell membrane of each of the two cells produced in this phase. Types of Reproduction in the Cell Sexual Reproduction This type of reproduction requires the presence of both sexes, male and female, where they are sexually connected, in order to reach the sperm from the male to the egg in the body of the female, to be pollinated by the integration of the sperm with the egg, A new cell containing new genetic traits, and this cell continues to divide to form a new living organism of the same species. This type of reproduction is based on the indirect division of the cell, where an organism is produced from a particular type of organism so that the organism carries the same genetic and genetic characteristics as the original organism. The most important living catheters reproduce spontaneously: Primitives: To two identical nuclei, to form each nucleus of a new living being, which has the power to split again, such as amoeba. Primitives: These organisms are characterized by the fact that they do not contain a nucleus, so that the chromosome replaces the nucleus and is divided into identical chromosomes, forming two identical cells in a process called binary fission, such as bacteria. Fungi: fungi are divided into several ways, some of which is divided by fragmentation, where the mushroom appears on the new parts called buds and then divide the mushroom cell into two or more cells, and then enter the new cells to the buds, to separate from the body of the fungus, The most important examples are yeast fungus, fungi can be divided by spores; so that the spore is divided indirectly. Examples of this method are fungus mold.
