Wednesday, June 2, 2010

human cell foundation for all life

let us look at a foundation for all life, the cell. Let's look at a human cell, since all of us who will read this will be human, and thus we all have cells in common. Some of us were told in school that cells are a simple structure, however we have learned in the last decade or so that actually cells are extremely complex structures and they even contain complex structures in them!
Here are a few complex parts of cells that are common to every cell in every species.

DNA (Deoxyribonucleic acid) is the molecule that contains the chemical instructions for cells to manufacture various proteins.


Chromosome – a carrier of genes and one of the 46 molecules of DNA. It comes in 23 pairs, and is found in each cell in the human body, together contains all the genes. These chromosomes contain the instructions to make all the proteins that are needed. Other species contain more or fewer chromosomes. One member of each pair of the 23 pairs comes from the gamete of each parent.


Gene – Is the basic unit for the transmission of heredity, consisting of a string of chemicals coding for the manufacture of certain proteins. The instructions from the 46 chromosomes are organized into genes on the chromosome. Each gene is a separate section of a chromosome, and every gene contains instructions for specific proteins. Each gene has chemicals (amino acids) that are paired and then arranged in groups of three (triplets). Genes direct the creation of 20 types of amino acids.

Also consider this:
Human genome – Is the full set of all the 25,000 or so genes on 46 chromosomes that are the instructions for making a human. There is a genome for every species, even plants. Every human except for mono zygotic twins has a slightly different code, otherwise the human genome is 99.99% the same for any two people.

Is there any one out there who can tell me that how by chance amino acids would ever get together and form genes, and then form chromosomes, and then make DNA? Also explain to me why these complex structures whose instructions are specific would randomly do anything, let alone randomly form a whole different creature from what is currently is? The purpose of the DNA of the cell is to guide it to do what needs to be done. A muscular cell does not try to think, nor does a hair cell try to flex. Most cells also reproduce; you do not have blood cells try to make a cell for the stomach. Yes, we do occasionally we have cancer cells, a group of cells that are similar to normal cells yet abnormal and uncontrollably multiply and destroy healthy tissues. However from cancer we do not find another whole species being created. There was a cellular malfunction. This look at cells is a very crude and simple glance; I am not doing it justice. Yet can you deny the complexity of the cell?

How about looking at a different cell, or just one part of a different cell; the flagellum motor of a bacterium. The flagellum is a hair like structure on bacteria that propels a bacterium around.

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