1. How do embryonic stem cells work? - In the embryo, stem cells are capable of becoming all various cell types this is what makes them so important and helpful.
2. Why are embryonic stem cells important? - They divide to repair and replace worn out/damaged tissue.
3. How has embryonic stem cells impacted medicine? - Still in early development these embryonic stem cells or ES cells can restore tissues that have been damaged by diseases such as diabetes, heart attacks, Parkinson's disease or spinal cord injuries.
4. What are the potential problems associated with this technology? - While doing research on stem cells it is very easy to break/"reprogram" the stem cell leading to very undesirable outcomes and quality of life for the person.
5. What are the ethical considerations relevant to this technology? - This research should be allowed because of the great potential benefits. But under great supervision and and for good reason not just because they can.