The Cell Cycle and Mitosis Review (5th)

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 prophase?

Back

During prophase, the nuclear membrane breaks down, chromatin condenses into chromosomes, and spindle fibers begin to form.

Front

What is the role of spindle fibers in mitosis?

Back

Spindle fibers help separate the chromosomes during mitosis by attaching to the centromeres and pulling them apart.

Front

What occurs during metaphase?

Back

During metaphase, chromosomes align at the cell's equatorial plane, and spindle fibers attach to their centromeres.

Front

What happens during anaphase?

Back

During anaphase, sister chromatids are pulled apart to opposite poles of the cell as the spindle fibers shorten.

Front

What is telophase?

Back

Telophase is the final stage of mitosis where the chromosomes reach the poles, the nuclear membrane re-forms, and the chromosomes begin to de-condense.

Front

What is cytokinesis?

Back

Cytokinesis is the process that follows mitosis, where the cytoplasm divides, resulting in two daughter cells.

Front

What is the G1 phase?

Back

The G1 phase is the first stage of the cell cycle where the cell grows and prepares for DNA replication.

Front

What is the S phase?

Back

The S phase is the part of the cell cycle where DNA replication occurs, resulting in two copies of each chromosome.

Front

What is the G2 phase?

Back

The G2 phase is the second growth phase of the cell cycle, where the cell prepares for mitosis by producing proteins and organelles.