Cell Cycle And Cell Division Class 11 Notes - Chapter 10

It is a universally accepted fact that the cell is the most basic, structural and functional unit of life. A cell could be an individual organism by itself (such as an amoeba) or the cells could be a part of a larger organism (such as a cat). But how does this fundamental unit multiply for growth or repair?

What is the Cell Cycle?

Essentially, the cell cycle is an orderly sequence of events that occur before the cell actually divides and gives rise to new cells. This is a very important process and has varying implications from growth and development to repair of the organism.

Mitosis

This is one of the two types of cell division where a single cell divides into two genetically identical daughter cells. In unicellular organisms, this type of cell division typically contributes asexual reproduction. In multicellular organisms, mitosis is helpful for growth and repair of damaged cells. Mitosis is also called equational division.

Meiosis

Also called as reduction division, meiosis is another type of cell division that commonly occurs during sexual reproduction. Here, the chromosomes in the parent cell reduce by half, forming four gamete cells which are genetically distinct from the parent cells. Meiosis is very significant has it provides the genetic diversity among a population.

Important Questions on Cell Cycle And Cell Division

  1. What is Cytokinesis?
  2. Describe the quiescent phase of the cell cycle.
  3. What is mitosis?
  4. What is the significance of meiosis?

In conclusion, the two types of cell division, namely mitosis and meiosis have their own significance and functions. To learn more about cell cycle and cell division, register at BYJU’S.

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