stem cells

• What is the first key feature of stem cells?

  Division by mitosis
• Stem cells can differentiate into specialized cells.
• Stem cells can differentiate into specialized cells such as a nerve cell or a skin cell.
• Embryonic stem cells can differentiate into nerve cells, skin cells, or blood cells.
• What is the first cell formed when a sperm cell fertilizes an egg cell?

  Zygote
• Steps in the development of an embryo from a zygote

  1️⃣ Sperm fertilizes egg to form zygote

  2️⃣ Zygote divides by mitosis

  3️⃣ Embryonic stem cells form

  4️⃣ Cells differentiate into tissues
• Where are adult stem cells found in humans?

  Bone marrow
• Adult stem cells can only differentiate into a narrow range of cells.
• Adult stem cells replace damaged cells but do not form new tissues like embryonic stem cells.
• What types of blood cells can adult stem cells in bone marrow differentiate into?

  Red, white, platelets
• Plant stem cells are found in meristem tissue.
• Where are meristem tissues located in plants?

  Growing tips of roots and shoots
• Unlike embryonic stem cells, plant stem cells persist for the plant's entire life.
• Match the plant cell with its function:

  Phloem cells ↔️ Transport sugars

  Xylem cells ↔️ Transport water

  Root hair cells ↔️ Absorb water and minerals

  Palisade cells ↔️ Perform photosynthesis