Organism are usually classified into unicellular organism and multicellular organisms based on the cells present in that particular type of organisms. Unicellular are usually bacteria which consists of a single cells, whereas multicellular comprises of number of cells. Plants and animals are multicellular organism. The growth of multicellular organism is due to mitosis. Mitosis occurs by replicating the cells between the nucleus and cytoplasm.
Importance of Mitosis in Unicellular and Multicellular Organism
Mitosis is a form of cell division where a single cell divides into two identical daughter cells. The main purpose of cell division is for growth, maturity and replenish the damaged and worn out cells. This is very important in life cycle of most living organisms. Bacteria are unicellular organism because it consists of single cell, in such organisms mitosis takes place through asexual reproduction replicating identical copies of the single cell. However when it comes to multicellular organism which involves more number of cells, mitosis produces more cells for growth and repair. For example the dead skin or the scared skin is usually replaced by new healthy skin through the process of mitosis.
Cell Division during Mitosis
Many people find it challenging to identify the trna number during various stages of mitosis and meiosis. After DNA replication, the cells are usually divided into two however the count of DNA will be 4 times because every other chromosome will replicate its DNA. For example if the number of chromosome is 8 then the DNA count will be 4X of chromosomes so DNA count will be 32.
Summing it up
The process of Mitosis and meiosis is mainly for cell reproduction and growth. Meiosis produces gametes, the male sex hormone responsible for sexual reproduction. Therefore all these processes are essential for human well-being and also for reproduction.