Cell Cycle Regulation

Front

What is the G2 checkpoint responsible for?

Back

The G2 checkpoint checks for DNA damage and ensures that DNA replication is complete before the cell enters mitosis.

Front

What does the 'G' in G1 and G2 stand for?

Back

The 'G' stands for 'gap' or 'growth', indicating periods of cell growth and preparation for DNA synthesis.

Front

What occurs during the G1 phase of the cell cycle?

Back

During the G1 phase, cells grow, carry out normal functions, and copy their organelles.

Front

How does the volume of a cell change compared to its surface area as it grows?

Back

As a cell grows, its volume increases faster than its surface area, which can lead to the volume being too large for the available surface area for material exchange.

Front

What is NOT a process that occurs during interphase?

Back

Cell division does not occur during interphase; it is a phase of growth and preparation for division.

Front

What is the main purpose of the cell cycle?

Back

The main purpose of the cell cycle is to ensure proper cell growth, DNA replication, and division to produce new cells.

Front

What happens 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 role of checkpoints in the cell cycle?

Back

Checkpoints are regulatory mechanisms that ensure the cell cycle progresses only when certain conditions are met, preventing errors.

Front

What is the significance of the spindle checkpoint?

Back

The spindle checkpoint ensures that all chromosomes are properly attached to the spindle apparatus before the cell proceeds to anaphase.

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 (mitosis).