• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

Biology Project The Stem Cell

Extracts from this document...


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.


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.


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.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our GCSE Life Processes & Cells section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

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

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related GCSE Life Processes & Cells essays

  1. Marked by a teacher

    Thyroid Cancer Research Project

    3 star(s)

    1.2a)Treatment Surgery Surgery is the most common treatment of thyroid cancer. One of the following procedures may be used:Lobectomy which is the removal of the lobe in which thyroid cancer is found. Biopsies of lymph nodes in the area may be done to see if they contain cancer.Near-total or total

  2. Peer reviewed

    How the structure of cells is related to their function.

    5 star(s)

    battery of organelles inside which each have their own special jobs according to what the specific cells function is. For example if you take the sperm cell in the male reproductive system, (pictured below in fig1) it has a long distance to travel and then when it finally gets there it has to try and fertilise the female egg.

  1. Peer reviewed

    Plantae Kingdom Project

    4 star(s)

    compounds which protect their cells when they dry out and they also have a repair mechanism which rapidly goes into effect when the plant re-hydrates. This allows plants to completely dry out for long periods, and rapidly recover.

  2. The effect of acid on the cell membrane

    water * 0.8 molar used 16cm� HCl, 4cm� water * 0.7 molar used 14cm� HCl, 6cm� water * 0.6 molar used 12cm� HCl, 8cm� water * 0.5 molar

  1. How Temperature Affects the Movement of Pigment Through Cell Membranes

    whereas the fatty acid tails can not (hydrophobic). In the phospholipids bilayer, the hydrophilic heads are always on the outside of the membrane. The hydrophobic tails are always on the inside of the membrane. The purpose of a cell membrane is to control the transport of substances moving into and out of a cell.

  2. Lab Research Paper. Just a Pinch of Salt and a Dash of Bacteria: the ...

    This leads us to the question, which bacteria, E. coli 101 or Bacillus subtilis, can withstand higher concentrations of salt? A probable answer to this question would be that if there is a very high concentration of salt, then instead of inhibiting bacterial growth, it will help the bacteria, specifically E.

  1. Free energy and water potential.

    Transmembrane proteins that form hydrophilic channels have been also stated to accelerate the process of the passage of water. It has been recently discovered that aquaporins facilitate the water flux between cells. As filters of the cell, aquaporins prevent the loss of e.g.

  2. Should Embryonic Stem Cell Research Be Allowed?

    This meeting of the egg and the sperm cell creates a zygote (fertilised egg cell), which later develops into an embryo. The cells in the embryo divide, forming Embryonic Stem Cells, and the subsequent divides of each cell create more and more Embryonic Stem Cells.

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work