Cell Division

• What are chromosomes made of?

  Coiled up lengths of DNA molecules
• Where are chromosomes found?

  In the nucleus
• How are chromosomes typically organized in body cells?

  They are normally in pairs
• What is the cell cycle?

  A series of stages in cell division
• What happens before a cell divides?

  It grows, increases subcellular structures, and duplicates DNA
• What are the three things a cell does before dividing?

  Grows, increases subcellular structures, duplicates DNA
• What is mitosis?

  The stage of the cell cycle when the cell divides
• What is the outcome of mitosis?

  Two identical cells are formed
• What happens to the cell's DNA during mitosis?

  It has been doubled
• What happens to the chromosomes during mitosis?

  One set is pulled to each end of the cell
• What divides to form two cells during mitosis?

  The cytoplasm and cell membranes
• Why is mitosis important for multicellular organisms?

  It allows growth and cell replacement
• What are the main stages of the cell cycle before division?

  • Growth in size
  • Increase in subcellular structures (e.g., mitochondria, ribosomes)
  • Duplication of DNA
• What are the key processes involved in mitosis?

  1. DNA is doubled
  2. Chromosomes are separated
  3. Cytoplasm and membranes divide
  4. Two identical cells are formed