AP Biology Unit 4 Review

Front

What is the longest phase of the cell cycle?

Back

Interphase is the longest phase of the cell cycle, during which the cell grows, duplicates its DNA, and prepares for mitosis.

Front

What is the purpose of cyclin-CDK complexes?

Back

Cyclin-CDK complexes regulate the cell cycle by controlling the progression through different phases.

Front

What structure connects sister chromatids?

Back

The centromere is the structure that connects sister chromatids, ensuring they are pulled apart during cell division.

Front

Which phase of the cell cycle is primarily responsible for cell growth?

Back

The G1 phase is primarily responsible for cell growth, where the cell increases in size and synthesizes proteins.

Front

What is the function of a spindle checkpoint in mitosis?

Back

The spindle checkpoint ensures that microtubules are properly attached to the kinetochores on chromosomes before proceeding with mitosis.

Front

What are the main phases of the cell cycle?

Back

The main phases of the cell cycle are Interphase (G1, S, G2) and M phase (mitosis and cytokinesis).

Front

What occurs 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 apoptosis?

Back

Apoptosis is a programmed cell death process that eliminates damaged or unnecessary cells.

Front

What role do checkpoints play in the cell cycle?

Back

Checkpoints in the cell cycle monitor and regulate the progression of the cell cycle, ensuring that each phase is completed accurately.

Front

What is the role of the centrosome during cell division?

Back

The centrosome organizes microtubules and is crucial for the formation of the mitotic spindle during cell division.