Properties and functions of the cell
In our previous lessons, we had discussed nutrition, movement, respiration and excretion are some of the properties and functions of the cell. Properties and functions of the cell are the characteristics features shown by living things. The cell is also a living thing
This week lesson will be focused on growth which is also one of the property and function of the cell
Growth in living things can be defined as the irreversible increase in size and mass due to the utilization of food to make additional protoplasm
Cell theory states that new cells are formed from the preexisting ones
All multicellular organisms begin life as a single fertilised cell. This cell divides into two,then four and so on.
Therefore, cell division brings about an increase in the number of cells.
After cell division, the daughter cells increase in mass and size I.e enlarge. After enlargement, each cell may develop into a special type of cell by changing its shape and structure to carry out a particular function.
The kind of cell it becomes depend on its position in the body of the organism. If the cell is in the brain it develops in to nerve cell, sperm cell if it is in the testes or a ciliated cell,if it is the trachea (wind pipe). This process is known as cell differentiation.
CELL DIVISION (MITOSIS)
Mitosis is a cell division that occurs