Cell cycle mitosis worksheet

1. List the Phases of the Cell Cycle
   Write the main phases of the cell cycle in the correct order:
   1. G₁ (Gap 1)
   2. S (Synthesis)
   3. G₂ (Gap 2)
   4. M (Mitosis)
   5. G₀ (Resting Phase)
2. Match the Following Descriptions to the Correct Phase of the Cell Cycle
   1. Cell grows and performs normal functions.
   2. DNA is replicated.
   3. Cell prepares for mitosis.
   4. Cell division occurs.
   5. Cell exits the cycle and becomes inactive.

1. Order the Stages of Mitosis
   Arrange the stages of mitosis in the correct sequence:
   • Prophase
   • Metaphase
   • Anaphase
   • Telophase
2. Fill in the Blanks
   • During prophase, the __________ condenses into chromosomes, and the __________ begins to break down.
   • During metaphase, chromosomes align at the __________ of the cell.
   • During anaphase, the __________ are pulled apart to opposite sides of the cell.
   • During telophase, the __________ reforms, and the cell starts to divide.
3. Critical Thinking
   • Why is DNA replication in the S phase essential before mitosis?
   • How might errors in mitosis affect an organism?
4. Short Answer
   Explain the significance of mitosis in the next processes:
   • Growth
   • Tissue repair
   • Asexual reproduction
5. Cancer and the Cell Cycle
   • What happens when the regulation of the cell cycle is disrupted?
   • Why is mitosis often faster in cancerous cells compared to normal cells?

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Cell cycle mitosis Multiple Choice Questions answers

Here is the important Multiple Choice Questions on the Cell Cycle and Mitosis

• Which phase of the cell cycle involves DNA replication?
  a) G₁ phase
  b) S phase
  c) G₂ phase
  d) M phase
  Answer: b) S phase
• During which phase does the cell grow and perform normal functions?
  a) G₁ phase
  b) G₂ phase
  c) S phase
  d) M phase
  Answer: a) G₁ phase
• What happens during the G₂ phase of the cell cycle?
  a) DNA is replicated
  b) The cell divides
  c) The cell prepares for mitosis
  d) The cell exits the cycle
  Answer: c) The cell prepares for mitosis
• What is the role of the G₀ phase in the cell cycle?
  a) DNA replication
  b) Resting phase for non-dividing cells
  c) Preparation for mitosis
  d) Cell division
  Answer: b) Resting phase for non-dividing cells
• In which stage of mitosis do chromosomes align in the middle of the cell?
  a) Prophase
  b) Metaphase
  c) Anaphase
  d) Telophase
  Answer: b) Metaphase

• During which stage of mitosis do sister chromatids separate and move to opposite poles?
  a) Prophase
  b) Metaphase
  c) Anaphase
  d) Telophase
  Answer: c) Anaphase
• Which of the following structures forms during prophase?
  a) Spindle fibers
  b) Cell plate
  c) Cleavage furrow
  d) Centrioles duplicate
  Answer: a) Spindle fibers
• What occurs during telophase?
  a) Chromosomes condense and become visible
  b) Sister chromatids are pulled apart
  c) Chromosomes decondense, and the nuclear envelope reforms
  d) The cytoplasm divides
  Answer: c) Chromosomes decondense, and the nuclear envelope reforms
• Which of the following checkpoints ensures proper DNA replication?
  a) G₁ checkpoint
  b) G₂ checkpoint
  c) Spindle assembly checkpoint
  d) M checkpoint
  Answer: b) G₂ checkpoint
• What is the main role of cyclins in the cell cycle?
  a) To repair DNA damage
  b) To regulate the progression of the cell cycle
  c) To form the spindle fibers
  d) To break down the nuclear membrane
  Answer: b) To regulate the progression of the cell cycle
• What is the primary reason for uncontrolled cell division in cancer?
  a) Overproduction of spindle fibers
  b) Loss of regulation at cell cycle checkpoints
  c) Faulty DNA replication
  d) Delayed mitosis
  Answer: b) Loss of regulation at cell cycle checkpoints
• Which of the following processes requires mitosis?
  a) Formation of gametes
  b) Asexual reproduction in bacteria
  c) Growth and tissue repair
  d) Genetic variation
  Answer: c) Growth and tissue repair
• How does cytokinesis differ between plant and animal cells?
  a) Plant cells form a cleavage furrow, while animal cells form a cell plate.
  b) Animal cells form a cleavage furrow, while plant cells form a cell plate.
  c) Both plant and animal cells form a cleavage furrow.
  d) Both plant and animal cells form a cell plate.
  Answer: b) Animal cells form a cleavage furrow, while plant cells form a cell plate.