3.3.1 Mitosis

• What is mitosis?

  A type of cell division
• Stages of mitosis in the correct order

  1️⃣ Prophase

  2️⃣ Metaphase

  3️⃣ Anaphase

  4️⃣ Telophase
• During prophase, chromosomes condense and the nuclear envelope breaks down.
• During metaphase, chromosomes align along the middle of the cell
• What happens to sister chromatids during anaphase?

  They are pulled apart
• In telophase, new nuclear envelopes form around the separated chromosomes.
• The cell cycle consists of interphase and the mitotic phase
• Stages of interphase in the correct order

  1️⃣ G1 (Growth 1)

  2️⃣ S (Synthesis)

  3️⃣ G2 (Growth 2)
• What occurs during the G1 phase of interphase?

  Cell growth
• DNA replication occurs during the S phase of interphase.
• During the mitotic phase, the cell divides into two daughter cells through mitosis and cytokinesis
• What happens to chromosomes during metaphase of mitosis?

  They align at the equator
• Sister chromatids separate and move to opposite poles during anaphase.
• New nuclear envelopes form during telophase
• What are the three key functions of mitosis?

  Growth, repair, asexual reproduction
• What are the three key functions of mitosis?

  Growth, repair, asexual reproduction
• Mitosis helps repair damaged tissues by replacing old or injured cells
• In bacteria, mitosis is the primary mode of reproduction.
• During development, what does mitosis enable organisms to form?

  Tissues and organs
• Match the stages of mitosis with their descriptions:

  Prophase ↔️ Chromosomes condense and become visible

  Metaphase ↔️ Chromosomes align at the equator

  Anaphase ↔️ Sister chromatids separate

  Telophase ↔️ New nuclei form around chromosomes
• The purpose of mitosis is to produce gametes for sexual reproduction.

  False
• How many diploid daughter cells are produced in mitosis?

  Two diploid cells
• The cell cycle comprises two main phases: interphase and the mitotic phase
• Arrange the subphases of interphase in the correct order:

  1️⃣ G1 (Growth 1) phase

  2️⃣ S (Synthesis) phase

  3️⃣ G2 (Growth 2) phase
• Cytokinesis is the division of the nucleus during the mitotic phase.

  False
• What happens to chromosomes during prophase of mitosis?

  They condense
• During metaphase of mitosis, chromosomes align at the cell’s equator
• Mitosis ensures genetic information is maintained in each replicated cell.