Stem Cells
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Questions and Answers

What are stem cells?

  • Cells that divide to produce specialized cells (correct)
  • Cells found only in plant stems
  • Cells that maintain the body's external environment
  • Cells with limited differentiation abilities
  • What is the main difference between embryonic stem cells and adult stem cells?

  • Adult stem cells can differentiate into any type of body cell, while embryonic stem cells have limited differentiation specific to their tissue origin
  • Embryonic stem cells can only differentiate into blood cells, while adult stem cells can differentiate into any type of body cell
  • Embryonic stem cells can differentiate into any type of body cell, while adult stem cells have limited differentiation specific to their tissue origin (correct)
  • Adult stem cells can only differentiate into blood cells, while embryonic stem cells can differentiate into any type of body cell
  • How can embryonic stem cells be recreated to avoid ethical issues?

  • By exposing the cells to extreme temperatures
  • By isolating stem cells from adult tissues
  • By replacing the egg cell's genome with an adult's genome or by introducing specific genes into an adult skin cell (correct)
  • By using a specific chemical process to alter the cell's properties
  • What is an example of an adult stem cell?

    <p>Blood cells, which can differentiate to fulfill the body's increasing demand for oxygen</p> Signup and view all the answers

    How are stem cells similar to branches on a tree?

    <p>They produce specialized cells, similar to how branches produce leaves, fruits, and small branches</p> Signup and view all the answers

    Study Notes

    Stem Cells

    • Stem cells are cells that have the ability to develop into different cell types in the body.

    Embryonic Stem Cells vs. Adult Stem Cells

    • Embryonic stem cells are derived from embryos and have the ability to develop into any cell type in the body.
    • Adult stem cells are found in adult tissues and have a more limited ability to develop into different cell types.

    Recreating Embryonic Stem Cells

    • Induced pluripotent stem cells (iPSCs) can be created from adult cells, such as skin or blood cells, through a process that reprograms the cells to have the same abilities as embryonic stem cells.
    • This process avoids the ethical issues surrounding the use of embryonic stem cells.

    Adult Stem Cells

    • An example of an adult stem cell is a hematopoietic stem cell, which is found in bone marrow and can develop into different types of blood cells.

    Analogy

    • Stem cells are similar to branches on a tree because they have the ability to differentiate into different cell types, just as a branch can grow into different limbs.

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    Test your knowledge about stem cells and their potential by taking this quiz. Learn about the different types of stem cells and their applications in medicine and research. Gain insights into the capabilities and controversies surrounding this fascinating field of science.

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