stem cells

• What are stem cells?

  Stem cells are undifferentiated cells that can divide and differentiate into specialized cells.
• What are the two key features of stem cells?

  Stem cells can divide by mitosis and can differentiate into specialized cells.
• How do stem cells contribute to human development?

  Stem cells divide and differentiate to form all the specialized cells needed for a human organism.
• What is a zygote?

  A zygote is a single cell formed when a sperm cell fertilizes an egg cell.
• What are embryonic stem cells capable of?

  Embryonic stem cells can differentiate into any type of cell in the body.
• What happens to embryonic stem cells as development progresses?

  Embryonic stem cells continue to divide and differentiate into all necessary cell types.
• How do adult stem cells differ from embryonic stem cells?

  Adult stem cells can only differentiate into a narrow range of specialized cells.
• Where are adult stem cells found in the body?

  Adult stem cells are found in bone marrow.
• What types of cells can adult stem cells in bone marrow differentiate into?

  Adult stem cells can differentiate into red blood cells, white blood cells, or platelets.
• What is the role of stem cells in maintaining health?

  Stem cells can replace damaged cells to keep the organism alive.
• Where are plant stem cells located?

  Plant stem cells are found in meristem tissue.
• What is the significance of plant stem cells in growth?

  Plant stem cells differentiate into all the cells and tissues needed for the plant's growth.
• What types of cells can plant stem cells differentiate into?

  Plant stem cells can differentiate into palisade cells, phloem, xylem, and root hair cells.
• How long do plant stem cells persist in a plant's life?

  Plant stem cells persist for the entire life of the plant.
• What are the main 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 specific tissues.
• What are the functions of plant stem cells?

  • Found in meristem tissue.
  • Differentiate into various cell types needed for growth.
  • Persist throughout the plant's life.