Cell Cycle

Front

What is the cell cycle?

Back

The cell cycle is the series of events that take place in a cell leading to its division and duplication (replication). It consists of interphase and the mitotic phase.

Front

What is interphase?

Back

Interphase is the phase of the cell cycle where the cell spends most of its time (about 90%). It is divided into three stages: G1, S, and G2.

Front

What happens during the S phase of interphase?

Back

During the S phase, the cell replicates its DNA, resulting in the duplication of chromosomes.

Front

What is the mitotic phase?

Back

The mitotic phase is the part of the cell cycle where the cell divides. It includes mitosis and cytokinesis.

Front

What is mitosis?

Back

Mitosis is the process of nuclear division in which one nucleus divides to form two identical nuclei.

Front

What is cytokinesis?

Back

Cytokinesis is the process that follows mitosis, where the cytoplasm of a parental cell divides into two daughter cells.

Front

What occurs during the G1 phase of interphase?

Back

During the G1 phase, the cell grows and synthesizes proteins necessary for DNA replication.

Front

What occurs during the G2 phase of interphase?

Back

During the G2 phase, the cell continues to grow and prepares for mitosis by producing the necessary proteins and organelles.

Front

What is the significance of the cell cycle checkpoints?

Back

Cell cycle checkpoints are control mechanisms that ensure the proper division of the cell. They prevent the cell from proceeding to the next phase until certain conditions are met.

Front

What is the role of cyclins in the cell cycle?

Back

Cyclins are proteins that regulate the cell cycle by activating cyclin-dependent kinases (CDKs), which drive the cell through the different phases.