We use cookies to create the best experience for you. Keep on browsing if you are OK with that, or find out how to manage cookies.

The Biochemistry of Apoptosis - Essay Example

Comments (0)
The Biochemistry of Apoptosis [Author] [Institution] The Biochemistry of Apoptosis The term apoptosis is a term which is used to describe the normal death of a living cell in living organisms. This is a normal and constant process since the living organisms function when new cells are born and they generate and the old cells or selected cells die…
Download full paper

Extract of sample
The Biochemistry of Apoptosis

Download file to see previous pages... The term apoptosis can’t be confused with the term necrosis which refers to the death of a cell due to some disease or infection. Basically, apoptosis is a part of the functioning of the cell in an organism. When these functional processes are incomplete, it can lead to the occurring of tumors such as benign and malignant. Every day, about 50 to 70 billion cells die because of apoptosis in an average adult. For the children, approximately 20 to 30 billion cells die each day. Research has also increased since the past two decades on apoptosis and its importance has become a biological phenomenon as the defective processes have been resulted in a variety of diseases. Excessiveness of apoptosis causes atrophy and an insufficient amount of processes can result in uncontrollable cell proliferation such as cancer (Taylor, 2006, p. 138). Apoptosis usually has several distinct stages. The cell starts to shape into a round in the first stage of the process due to the protein present inside the cell being eaten by enzymes that are active. In the next stage, the DNA which is in the nucleus comes apart and starts to shrink. Consequently, the membrane that surrounds the nucleus also begins to degrade and does not form the usual layer then. Since the cell nucleus is not protected anymore, the DNA breaks down in uneven fragments. This makes the nucleus break down into several bodies that has uneven values of the DNA. Blebbing is the process under which the cell itself goes through and its parts begin the break down. Finally, the cell breaks down into pieces completely and it is then consumed by the small cells called phagocytes. If this last step of the phagocytic digestion is not completed in the process, it can cause danger. The cell fragments that are left undigested accumulate in the body and it is shown that they can cause death in mouse embryos and mouse neonates (Green, 2011, p. 37). Apoptosis occurs because of two types of signals, intrinsic and extrinsic. Intrinsic signals are those that occur inside a cell and extrinsic are those that occur outside the cell. When it occurs because of the intrinsic signals, it may be because of the lack of sufficient nutrition provided to the cell or the damage to the DNA present in the nucleus. The extrinsic signals occur as a result of a responsive virus or due to some treatments such as chemotherapy. The cell may also sometimes initiate the process itself in order to fight a virus like HIV. The study of apoptosis has however, become very important as it leads to the understanding of the cell death and how the process works. This helps in the further study about the stem cells and their implications in medicine. Philosophers had spent many years in searching the meaning of life, but in the recent decade, the cell biologists have become more interested in the meaning of death. As mentioned earlier, apoptosis is described as the collapse of a cell after many steps of process. These observations were made in the 1972 but they were underestimated and their importance was ignored for many years. But in the present day, apoptosis is implied in the biological processes that range from the embryogenesis to ageing and from the normal tissue homeostasis to the human diseases, and has also become a focal point in the biomedical research. As we talk about the biological mechanism of the term apoptosis, ...Download file to see next pagesRead More
Comments (0)
Click to create a comment
Molecular Targets and Drug Design: Apoptosis
Apoptosis Student Name Instructor Name Course University 21st December 2012 Apoptosis Apoptosis also defined as programmed cell death or physiological cell death that occurs as a result of a deliberate activation of the constituent genes, whose main function is to cause its own death.
10 Pages(2500 words)Essay
Clinical biochemistry 2
The biochemistry laboratory is extremely important for the diagnosis of various pathological conditions. The laboratory results provide crucial evidence for reaching to a conclusion with regard to diagnosis and management. Blood and urine samples are mainly used for the assessment in the biochemistry lab.
3 Pages(750 words)Essay
The Biochemistry of Panic
There is still no adequate and comprehensive and complete explanation of panic attack. However, this essay aims to answer the question, are panic attacks biological or mental? Nevertheless, this essay aims to demonstrate that panic attacks are caused more by psychological factors than biological ones.
7 Pages(1750 words)Essay
Medical Biochemistry Essay
Based on the changes in dietary patterns of individuals, in a normal healthy body glucose production by the liver is regulated and so is the case with the uptake of glucose by the muscles and other tissues. The two crucial mediators in this regulatory process are insulin and glucagon.
8 Pages(2000 words)Essay
Medical Biochemistry
With a tremendous advance in medical and laboratory analysis during the past years, researchers have been able to find information from the measurement of enzymes. In most cases, a clinical diagnosis, based on signs and symptoms, is complemented by laboratory tests, which bring answers to clinical questions and decisions.
10 Pages(2500 words)Essay
Biochemistry Master Essay
In many tissues, such as: adrenal glands, ovaries, placenta, testicles, adipose tissue and brain it catalyzes the conversion of testosterone to estradiol. Aromatase inhibitor has no influence on estrogen output from ovaries, but it has influence by interfering with the body's use of aromatase.
4 Pages(1000 words)Essay
Biochemistry of Nutrition
This means that Atkins diet places limited restriction on consumption of fat and protein rich foods like meats and cheeses (Hensley, 18). The rationale behind the Atkins diet is that a low carbohydrate
1 Pages(250 words)Essay
Clinical biochemistry
This exploration was greatly aided by the related studies applied in measurement and use of enzyme action, electrophoresis and spectrophotometry (Varcoe 2001). Chemical pathology as a discipline is
3 Pages(750 words)Essay
2008) mainly aimed to investigate the presence of the beta subunit of HCG using modified UI snRNA’s and understand the role of the beta subunit in enhancing cancer. Jankowska et al (2008) targeted the tumor cells in mRNA in order to block expression of hCGβ, which was a
3 Pages(750 words)Essay
Biochemistry - Cystic Fibrosis
The AF508 mutation that is what it is called as deletes three nucleotides or DNA building blocks from the gene. This loss leads to lack of a single amino acid or phenylalanine at position 508. Though this is the
1 Pages(250 words)Essay
Let us find you another Essay on topic The Biochemistry of Apoptosis for FREE!
Contact us:
Contact Us Now
FREE Mobile Apps:
  • About StudentShare
  • Testimonials
  • FAQ
  • Blog
  • Free Essays
  • New Essays
  • Essays
  • The Newest Essay Topics
  • Index samples by all dates
Join us:
Contact Us