Answers to AQA GCSE Cell Cycle and Mitosis (Biology)

Practice Question

1.State what is meant by the term cell cycle

The cell cycle is the sequence of stages that occur when a cell divides.

2.Name the three stages of the cell cycle

Interphase, mitosis and cytokinesis

3.Mitosis is important to multicellular organsism. Explain why.

Growth of the organism: It increases the number of cells, allowing an organism to grow from a single fertilised egg into a mature individual.

Repair of tissues: It replaces damaged or worn-out cells (e.g., skin cells, blood cells).

Asexual reproduction (in some organisms): It produces genetically identical offspring.

Development: It allows tissues and organs to form and develop correctly during embryonic development when the cells divide by mitosis.