stem cells

• What are stem cells?

  Cells that can divide and differentiate
• Why are stem cells important?

  They can form specialized cells and replace damaged ones
• What are the two key features of stem cells?

  • Ability to divide by mitosis
  • Ability to differentiate into specialized cells
• What is the process by which stem cells divide?

  Mitosis
• What is a zygote?

  A fertilized egg cell that forms an organism
• What type of stem cells are formed from a zygote?

  Embryonic stem cells
• How do embryonic stem cells differ from adult stem cells?

  Embryonic stem cells can differentiate into any cell type
• Where are adult stem cells found?

  In bone marrow
• What types of cells can adult stem cells differentiate into?

  Different types of blood cells
• What is the role of adult stem cells?

  To replace damaged cells
• Where are plant stem cells located?

  In meristem tissue
• What do plant stem cells differentiate into?

  All cells and tissues needed by the plant
• How do plant stem cells differ from embryonic stem cells?

  Plant stem cells persist throughout the plant's life
• What types of cells do plant stem cells differentiate into?

  • Palisade cells (for photosynthesis)
  • Phloem cells (transport sugars)
  • Xylem cells (transport water)
  • Root hair cells (absorb water and minerals)
• What happens to embryonic stem cells as development progresses?

  They disappear by full development
• What is the significance of stem cells in human life?

  They enable growth and repair of tissues
• How can stem cells be used in medicine?

  • Regenerate damaged tissues
  • Treat blood disorders
  • Potential for organ transplants