Unit 3: Lesson 1 - The 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 phases: G1, S, G2, and M.

Front

What happens during the G1 phase of the cell cycle?

Back

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

Front

What occurs during the S phase of the cell cycle?

Back

During the S phase, DNA replication occurs, resulting in the duplication of chromosomes.

Front

What is the G2 phase?

Back

The G2 phase is the final phase of interphase where the cell continues to grow and prepares for mitosis.

Front

What is mitosis?

Back

Mitosis is the process of cell division that results in two genetically identical daughter cells.

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 is a centriole?

Back

A centriole is a cylinder-shaped organelle found in animal cells that helps to form spindle fibers during cell division.

Front

What is the role of spindle fibers?

Back

Spindle fibers are structures that help separate chromosomes during cell division.

Front

What is a cell plate?

Back

A cell plate is a structure that forms during cytokinesis in plant cells, dividing the two new nuclei.

Front

What is the order of events in the cell cycle?

Back

The order is: cell grows (G1), DNA replicates (S), cell prepares for mitosis (G2), and cell divides (M).