9.3 Cell Cycle Regulation

Front

What happens to a cell's volume and surface area as it grows?

Back

As a cell grows bigger, its volume increases faster than its surface area.

Front

What is the consequence of a cell's volume becoming too large compared to its surface area?

Back

The cell's volume would be too large compared to the area available for materials to move in and out.

Front

During which phase of the cell cycle do cells replicate DNA?

Back

Cells replicate DNA during the S phase.

Front

What does NOT occur during interphase?

Back

Cell division does not occur during interphase.

Front

What is the relaxed form of DNA found during most of interphase?

Back

During most of interphase, DNA is found in a relaxed form called chromatin.

Front

What is the result of cells going through mitosis repeatedly without entering interphase?

Back

This results in cancer.

Front

Define the cell cycle.

Back

The cell cycle is the series of events that take place in a cell leading to its division and duplication.

Front

What are the main phases of the cell cycle?

Back

The main phases of the cell cycle are G1, S, G2, and M phase.

Front

What occurs 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 is the role of the S phase in the cell cycle?

Back

The S phase is responsible for DNA synthesis and replication.