Understanding the Cell Cycle

Why do single-celled organisms like bacteria divide?

• To reproduce

• To increase their size

• To repair damaged cells

• To decrease their surface area

What is a critical factor that cells must maintain to ensure proper function?

• Surface area to volume ratio

• High pressure

• High temperature

• Low pH level

What happens when a cell experiences DNA overload?

• The cell shrinks

• The cell divides

• The cell stops functioning

• The cell becomes more efficient

How does the surface area to volume ratio change as a cell grows?

• It fluctuates randomly

• It increases

• It remains constant

• It decreases

What is the main purpose of the G1 phase in the cell cycle?

• Nuclear division

• DNA replication

• Cell growth and protein synthesis

• Cell division

During which phase is DNA replicated?

• S phase

• G1 phase

• G2 phase

• M phase

What is the role of the G2 phase in the cell cycle?

• Cell growth

• DNA replication

• Preparation for cell division

• Nuclear division

What occurs during the M phase of the cell cycle?

• Protein synthesis

• Nuclear and cytoplasmic division

• DNA replication

• Cell growth

What is the significance of cytokinesis in the cell cycle?

• It divides the cytoplasm

• It replicates DNA

• It synthesizes proteins

• It repairs damaged cells

Which phase is not part of the interphase?

• S phase

• M phase

• G1 phase

• G2 phase