Tuesday, September 30, 2008

what is a gene? what is so special about the DNA of a red blood cell? and how is its' specialty adapted to it's function?

a gene is a sequence of paired nucleotides that determine a specific trait that will be prevealent in a specific organism. the interesting thing about red blood cells is that once they leave the bone marrow the nucleus of the cell collapses into the cell and it becomes prokaryotic; this allow s the cell to carry oxygen to the body without the nuclues using most of it and its concave shape allows more oxygen to be transported.
what is an enzyme and how are enzymes important to life?

enzymes are organic chemicals that are critical to the survival of life as we know it. the job of an enzyme is to speed up chemical reactions and at the same time lower the amount of energy tha tis needed to perform the reaction. this is why you are not burning up where you sit. without enzymes it would take so long to digest food that you would die of starvation before your body could get the nutrients. enzymes are very important for life.

Friday, September 19, 2008

what is life? and is a virus alive?
Life is the process by which an organism gains energy and reproduces. The offspring then repeate the process. this is the main function of a living thing. So by this definition anything that can gain energy and reproduce is alive therefore a virus is alive, the perfect parasite as my very intelligent biology teacher says.
What is Science?
Science is a philosephy of thought, it is a way of thinking in testable hypothesis and measureable results. It also allows us to define the world around us and it helps explain many phenomena.