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Biology 2nd Baccalaureate

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8.1. The cell cycle

The cell cycle

The cell cycle is an ordered set of events that leads to cell growth and division into two daughter cells. The cell cycle begins the moment a new cell appears, a descendant of another that divides, and ends at the moment when said cell, by division, originates two new daughter cells.

The duration of the cell cycle depends on the type of cell, and can be from a few hours to years. Eukaryotic beings multicellular can have two types of cells: diploid and haploid.

All cells have to be born and die. Multicellular beings can live longer than the cells that compose them, so cells have to reproduce at least at the same rate as they die.

Throughout the cell cycle, from when the cell appears until it divides into two other cells, the cell goes through two different stages:

Fundamental ideas about the cell cycle

The cell cycle that a cell goes through from its appearance until it divides into two other cells, is divided into two different stages:


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Biology and Geology teaching materials for Compulsory Secondary Education (ESO) and Baccalaureate students.