2. What Are Stem Cells (What Characteristics Define Them)?

Improved Essays
Question 2

What are stem cells (what characteristics define them)?

Stem cells are cells that has the potential to develop into different cell types in the body during early life and growth. They serve as an internal repair system , dividing essentially without limit to replenish other cells as long as the person is alive .When a stem cell divides it can either remain as a stem cell or can develop into a cell with more specialized function like muscle cell, red blood cell etc.
Two distinctive characteristics of stem cells are :-
• They are unspecialized cells which has the potential to renew themselves after cell division , sometimes after long period of inactivity.(Self Renewal)
• Under certain condition these cells can be develop into
…show more content…
However the constitution article 40.3.3 mentions “The State acknowledges the right to life of the unborn and, with due regard to the equal right to life of the mother, guarantees in its laws to respect, and, as far as practicable, by its laws to defend and vindicate that right.”[1]
Which lead to the interpretation that stem cell research is prohibited in Ireland .Some rules related to the IVF was mentioned in the sixth edition of Medical Council’s A Guide to Ethical Conduct and Behaviour states which stated that 1)any ovum that has been fertilized shouldn’t undergo destruction deliberately 2)Any research involving creation of new life or destruction of invitro Human life will be considered a professional misconduct .
In 2000 Commission of Human Reproduction declared that the use of IVF embryos for research will be strictly prohibited with an exception of SCNT .It even mentioned that the use or generation of hybrid interspecies embryos along with reproductive cloning is
…show more content…
Micropipette aspiration has a 2-10micron opening by applying precisely controlled suction force that typically ranges from 100-10000Pa.The limitations of micropipette aspiration is that the interpretation of the experiment are not straight forward we need to do analytical or computational models often to get the mechanical properties from geometric measurements of the aspired cells and applied pressure.The underlying assumption with the measurements are sometimes very difficult to validate.

Which has the highest elastic modulus: healthy red blood cell, red blood cell infected by Plasmodium falciparum, or red blood cell infected by Plasmodium vivax? Lowest? What are the implications for disease (i.e., what happens when the infected cells are stiff? Compliant?)

The elastic modulus of the red blood cell affected by Plasmodium falciparum is considered to be the highest as it stiffness increases still it reaches the schizont stage of infection .While the lowest elastic modulus is for the cell affected by Plasmodium

Related Documents

  • Improved Essays

    One of the many properties is that stem cells are able to divide and replicate. For this to happen, the cell has to be alive. After the process of division occurs, the stem cell can remain a stem cell or become a different cell. Cell division can also create an embryo, called a blastocyst. This can only occur after the cell is fertilized.…

    • 1178 Words
    • 5 Pages
    Improved Essays
  • Improved Essays

    Also, under physiologic or experimental conditions they can be induced to become tissue or organ specific cells with special functions. Stem cells are distinguished from other cells in the body. All stem cells have three general properties: they are capable of dividing and renewing themselves for long periods; they are unspecialized; and…

    • 1109 Words
    • 5 Pages
    Improved Essays
  • Improved Essays

    HL-60 cells are also used to test differentiation by viewing the cell morphology and apoptosis. After differentiation, HL-60 cells are no longer immortal and undergo an apoptosis. Apoptosis is a naturally occurring programmed cell death (Cirtain et al.,…

    • 1318 Words
    • 6 Pages
    Improved Essays
  • Great Essays

    Biological ideas - Describing and explaining the biological ideas related to the question or purpose by making multiple links between relevant biological ideas. What are stem cells? Stem cells are an undifferentiated cell that are from the same family. Stem cells take the place of cells that have died or are lost. Stem cells have the ability to renew and repair the body 's tissue, unlike mature cells that a permanently going to stay the same, stem cells are not only able to renew themselves, but can create into a completely new cell.…

    • 2468 Words
    • 10 Pages
    Great Essays
  • Great Essays

    Over time, some plans for controlling the differentiation of embryonic stem cells have been defined. In the future, if researchers can reliably direct differentiation of embryonic stem cells into what they want, they might be able to treat different kinds of diseases (1). Adult stem cells are undifferentiated cells that exist with differentiated cells in organs or tissues. These stem cell’s roles are to repair and/or maintain the tissue in which they are found. They can regenerate and differentiate yielding either some or all of the major specialized cells of the organ or tissue that they are found in (1).…

    • 1504 Words
    • 7 Pages
    Great Essays
  • Improved Essays

    Mitosis and Cancerous Cells Introduction Mitosis is by definition, “A type of cell division that results in two daughter cells each having the same number of chromosomes as the parent nucleus, typical of ordinary tissue growth.” Mitosis is a vital process to living organisms. Without mitosis, organisms could not grow, age, repair, or exist in general. Therefore, it is very important that the cell cycle is carefully controlled by the cell. This refers to is the limits set on cell division to prevent it from growing out of control, which are often special proteins. While it is true that certain cells, skin for example, divide faster than other cells, it is very dangerous for cells divide without limitation.…

    • 1120 Words
    • 5 Pages
    Improved Essays
  • Improved Essays

    With the help of specialized cell growth, mass amounts of organ tissue and other treatments can be made. This technology is leading scientists towards being able to make cures for the general public without using any embryonic stem cells. As the growth of adult stem cells becomes more abundant, the need for hESC…

    • 1237 Words
    • 5 Pages
    Improved Essays
  • Great Essays

    Embryonic Stem Cell Research Think of an axolotl, otherwise known as a salamander. These creatures can regrow or regenerate any limb or vital structure in their body to survive. I’m not saying that humans can regrow their limbs, but they can come pretty close. Like the cells in an axolotl, embryonic stem cells have regenerative properties that can regenerate in a human body. They are immortal and have unlimited developmental possibilities.…

    • 2203 Words
    • 9 Pages
    Great Essays
  • Great Essays

    However, CBE showed a relatively higher scavenging property than CQE. These data are in accordance with others, who have shown that high total phenolic content increases the antioxidant activity (Holasova et al.,…

    • 1417 Words
    • 6 Pages
    Great Essays
  • Superior Essays

    iPSC, induced Pluripotent stem cells, are cells that have been chemically “coaxed” back into the earliest Pluripotent stage of a cell. Extended iPS cells are given the ability to develop a placenta, as they are “extended” past the limitations of Pluripotent cells; this ability allows the development of an embryo (Stem Cell Federal Foundation/Ravven/Fikes). The…

    • 1354 Words
    • 6 Pages
    Superior Essays