Retype Title Here There are several fundamental and very important differences between normal cells and cancerous cells. One of these differences has to do with structure. In normal living cells DNA in genes and chromosomes go about their function in a routine and normal manner. Cancerous cells do not function in a normal manner, they develop an abnormal DNA and gene structure and while at the same time developing an abnormal number of chromosomes (Kolata 812). The human body relies on cells for the production and sustainment of energy. In terms of Energy supplementation to the body cancerous cell and normal cell function very differently.

Normal cells derive up to 70% percent of their energy from a system known as the Krebs cycle. Cancerous are different in that they have a defective Krebs cycle, they receive very little or no energy from this. Normal cells derive about 20% of their energy from a system known as glycolysis, cancerous cells...

Another difference between cancerous cells and normal cells in regards to energy is that cancerous cells can derive energy even in the absence of oxygen; normal cells must have oxygen present in order to derive energy. Another major difference between these two types of cells is that normal cells have built-in blood vessel systems and cancerous cells do not have built in blood vessel systems. In terms of growth factors normal cells reproduce in a manner that keeps them stable and in balance, cancerous cells on the other hand are over productive and require more chemicals for sustainment and are over active.
Another significant difference between these two types of cells is that hormones and enzymes in normal cells function and act in a normal manner. In cancerous cells however, hormones and enzymes are always either over active or under active. According to Hardman "one of the…