Cell Cycle Quiz

Describe the stages of the cell cycle, including interphase, mitosis, and cytokinesis, and explain the significance of each stage in cell division.

• Interphase consists of only G1 phase.
• Cytokinesis occurs before mitosis.
• Mitosis includes only prophase and telophase.
• The cell cycle includes Interphase (G1, S, G2), Mitosis (prophase, metaphase, anaphase, telophase), and Cytokinesis, each stage ensuring accurate cell division and genetic material distribution.

Answer explanation

The cell cycle consists of interphase (cell growth and DNA replication), mitosis (nuclear division), and cytokinesis (cytoplasm division). Each stage is crucial for accurate cell division, ensuring genetic material is properly distributed.

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NGSS.HS-LS1-4

Identify and describe each stage of the cell cycle and its purpose.

Answer explanation

The cell cycle consists of interphase (G1, S, G2) for growth and DNA replication, and mitotic phase (M) for cell division. Each stage ensures proper cell function and genetic material distribution, vital for organism growth and repair.

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What is the longest phase of the cell cycle where the cell grows, duplicates its DNA, and prepares for division?

• Interphase

• Mitosis

• Cytokinesis

• Prophase

Answer explanation

Interphase is the longest phase of the cell cycle, during which the cell grows, duplicates its DNA, and prepares for division. It includes G1, S, and G2 phases, making it essential for successful cell division.

What is the process of nuclear division consisting of prophase, metaphase, anaphase, and telophase?

• Interphase

• Mitosis

• Cytokinesis

• Telophase

Answer explanation

The process of nuclear division that includes prophase, metaphase, anaphase, and telophase is called mitosis. This is the stage where a cell divides its nucleus and genetic material, leading to two daughter cells.

Tags

NGSS.HS-LS1-4

What is the division of the cytoplasm resulting in two daughter cells called?

• Interphase

• Mitosis

• Cytokinesis

• Anaphase

Answer explanation

Cytokinesis is the process that follows mitosis, where the cytoplasm divides, resulting in two separate daughter cells. This is distinct from interphase and anaphase, which are different stages of the cell cycle.

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Why is proper regulation of the cell cycle crucial?

Answer explanation

Proper regulation of the cell cycle is crucial to prevent uncontrolled cell division, which can lead to cancer and other diseases. It ensures that cells only divide when necessary, maintaining healthy tissue function.

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How can errors in the cell cycle lead to diseases like cancer?

Answer explanation

Errors in the cell cycle can lead to uncontrolled cell division, resulting in tumors. Mutations in genes that regulate the cell cycle, such as oncogenes and tumor suppressor genes, are often implicated in cancer development.

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