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Biology Project The Stem Cell

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Introduction

Biology Project – The Stem Cell Contents 1. What is a stem cell 1 1. What are its uses? 2 1. What are the sources? 3 1. Why is it controversial? 4 1. A pro argument 5 1. Bibliography 6 Biology Project – The Stem Cell Research Question 1 – What is a stem cell? Ans. Stem cells are – 1. Unique cells which have the potential to renew themselves after cell division. 1. They can develop into many different kinds of cells in the body during early life and growth. 1. They can perform cell division even after long periods of inactivity. 1. Also known as ‘naïve’ cells as they are able to transform into other cells such as liver cells, red blood cells, white blood cells etc. 1. Each stem cell after cell division can either remain a stem cell or can transform into a cell with a more specific function such as liver cells etc. 1. Are of two types – embryonic and adult stem cell. ...read more.

Middle

The pelvic bones have the most bone marrow and thus bone marrow is generally extracted from there. Donors are given anaesthesia and needles are stuck into their bones. The bone marrow is extracted through these needles and stored in liquid nitrogen. 1. Peripheral Blood ? When a donor is given hormones called as growth factors the stem cells in the bone marrow grow and enter the bloodstream. A catheter (thin, flexible tube) is attached to one of the donor?s veins and the blood pumped out. The stem cells are filtered out and the blood re ? pumped into the donor. 1. Umbilical Cord Blood ? A large number of stem cells are found in the blood of the baby. Some of this is in the umbilical cord and the placenta. This blood can be stored in liquid nitrogen and used at a later date. Although the number of stem cells might be lesser than that in bone marrow these stem cells from a baby?s blood can divide into more blood cells than the stem cells in the bone marrow. ...read more.

Conclusion

Furthermore, the society allows for abortions to take place. Isn?t abortion also taking away a life? And now is killing a microscopic cell for beneficial purposes the same as driving a knife through the heart of an eight year old girl? Also, stem cells are only obtained from embryos which are anyway going to be aborted or are infertile. Then is this process even unethical? The answer is a simple no. If the embryo is anyway going to die a few weeks later why not use it to save more lives? The only argument left to refute is that of the potential of the embryo being killed. Again, as the embryo is doomed to die why not use its potential elsewhere? Why not use it to find cures to diseases? Adult stem cells are too few to research on and aren?t as useful as well. They are not a good substitute. My word to stem cell research is ? go ahead. We are not playing God of all things. If we are doing anything, we are only saving lives and this perfectly moral and ethical. ...read more.

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Here's what a teacher thought of this essay

3 star(s)

This is a good effort at writing a report around the controversial topic of stem cell research.
1. The content page is good practice.
2. There has clearly been a lot of research that has gone into writing this report.
3. It would benefit from a better structure. Do not include the questions that are being answered, include subheadings instead.
4. When giving information on arguments for or against a topic they should be written in an unbiased way.
5. Personal opinions should not be included in reports.
***(3 stars)

Marked by teacher Luke Smithen 08/05/2013

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