2. The two basic types of human cells, somatic cells and sex cells, mature and increase in number through processes known as mitosis and meiosis, respectively Cell Division Cells are living things and they grow. When a cell grows to a certain size, it makes a copy of it’s nucleus. The cell (‘parent’ cell) then divides into 2 ‘daughter’ cells. Each of these daughter cells is identical to its ‘parent’ cell. Each daughter cell will grow and be able to make a copy of its nucleus and divide into 2.
3. As the process continues, many more cells are formed. The splitting of a cell to produce two new cells is called cell division. This process of cell division is summarized bellow: As more cells are formed, the organism grow is size. Hence, a baby grows into a small child who then grow into an adult as hundreds of millions of cells are formed and added to the body through repeated cell divisions.
4. Cell division still continues because new cells are needed to replace old or damaged cells. Cell division will be slower. Cell division occurs in both plants and animals thought their lives and is essential for growth and for the replacement of old and damaged cells.
5. Yeast Yeast is a microscopic fungus made up of only one cell. They can increase in number by budding. A bud forms on the outer surface of a ‘parent’ cell. The nucleus then doubles and devides. One of the nuclei enters the bud. Then, a cell wall is formed between the ‘parent’ cell and the bud. Finally, the bud breaks away to become a new ‘daughter’ cell.
6. The End Done By: Mohammed Maher Shraim Greeting to the teacher Hiba Amro