L1 - The Cell Cycle

Open Ended

Describe how an organism develops from a single cell to having trillions of cells.

Multiple Choice

Why is cell division important for living organisms?

• It allows organisms to grow and develop from a single cell.

• It helps organisms to breathe.

• It provides energy for the cell.

• It allows cells to communicate with each other.

Multiple Choice

Which of the following is the correct order of steps in prokaryotic cell division by binary fission?

• DNA replication, chromosome segregation, separation

• Chromosome segregation, DNA replication, separation

• Separation, DNA replication, chromosome segregation

• DNA replication, separation, chromosome segregation

Open Ended

Explain why uncontrolled cell division can be harmful to an organism.

Multiple Choice

Which phase of the cell cycle do cells spend most of their time in?

• Mitosis

• Interphase

• Cytokinesis

• Prophase

Multiple Select

Select all the correct statements about cell cycle checkpoints.

• Checkpoint 1 checks for DNA damage and resources.

• Checkpoint 2 ensures DNA has replicated properly.

• Checkpoint 3 makes sure chromosomes are lined up during metaphase.

• Checkpoint 2 checks for chromosome alignment.

Fill in the Blanks

Fill in the blank: If a cell cannot be fixed, it undergoes

, also known as cell death.

Multiple Choice

What is the main purpose of cell cycle checkpoints?

• To ensure irreparable cells do not divide

• To speed up cell division

• To allow all cells to divide regardless of damage

• To create new proteins

Open Ended

Explain the significance of the G0 phase in the cell cycle and provide an example of a cell type that spends most of its life in this phase.