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The potential of stem cells

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Introduction

4. The potential of stem cells Aims: To explain what stem cells are and how they can be useful. And to recall the scientific evidence for the potential benefits of stem cell research. 1. What is meant by the Hayflick limit? The maximum times that cells can divide (it was discovered that cells can divide 50 times maximum). 2. Why can cancer cells keep on dividing? Because they don't have a Hayflick limit, so they keep dividing and they can eventually turn into a tumour. 3. What is a stem cell? They do not have a Hayflick limit and they can become any type of cell in the human body e.g. ...read more.

Middle

6. Why are so many people against stem cell research? Some people believe that life starts at the moment of conception (fertilisation), so the fertilised cell should have the same status as a human being. For those who believe that life begins at conception, the destroyed embryos could potentially have been a human being, so the destruction of the embryo is no different than the destruction of a human life. 5. Science - some tough decisions Aims: Discuss the scientific basis of laws regarding the termination of pregnancy. And to discuss the use of growth factor to enhance performance in sport. 1. What is meant by a viable foetus? ...read more.

Conclusion

3. Explain how scientific evidence can be useful to people who make laws about the termination of pregnancy. Well, they can find out at what stage/weeks the foetus become viable, so that abortion can be made as humane as possible. 4. What advantages does taking anabolic steroids give to an athlete? It enhances their performance. Steroids work by increasing muscle growth. 5. What are the health risks of taking anabolic steroids? Well, steroids can have many dangerous side effects some of these include: -liver failure -facial hair growth in women -the deepening of the voice in women -impotence (the inability to produce offspring) and the development of breasts in men. 6. Why are these substances banned in sport? Because they give the athletes an unfair advantage over others, as they are no longer just relying on their natural physical ability. ...read more.

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