Stem cells

• What are stem cells?

  Cells that can divide and differentiate
• What are the two key features of stem cells?

  They can divide by mitosis and differentiate
• How do stem cells divide?

  By mitosis to form more cells
• What can stem cells differentiate into?

  Specialized cells like nerve or skin cells
• Why are embryonic stem cells unique compared to adult stem cells?

  They can differentiate into any cell type
• What is formed when a sperm cell fertilizes an egg cell?

  A zygote
• What are embryonic stem cells capable of?

  They can differentiate into any type of cell
• What happens to embryonic stem cells over time?

  They divide and differentiate into various cells
• What type of stem cells are found in adult humans?

  Adult stem cells
• What is the role of adult stem cells in the body?

  To replace damaged cells and maintain tissues
• Where are adult stem cells primarily found?

  In bone marrow and specific tissues
• What do adult stem cells in bone marrow differentiate into?

  Different types of blood cells
• What is the function of plant stem cells?

  To differentiate into various plant tissues
• Where are plant stem cells located?

  In meristematic tissue at growth tips
• 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, phloem, xylem, and root hair cells
• What is the significance of stem cells in human development?

  They enable growth and tissue formation
• What are the main types of stem cells discussed?

  • Embryonic stem cells
  • Adult stem cells
  • Plant stem cells
• What are the differences between embryonic and adult stem cells?

  • Embryonic stem cells can differentiate into any cell type.
  • Adult stem cells can only differentiate into a limited range of cells.
  • Embryonic stem cells are present in early development, while adult stem cells are found in mature tissues.
• What are the roles of plant stem cells?

  • Differentiate into various plant tissues
  • Found in meristematic tissue
  • Persist throughout the plant's life