Thursday, November 11, 2010

Trimester 1

What I have learned:
I learned alot about mitosis and meiosis. I had no idea that cells went through that much. Mitosis consistes of four main stages. Prophase, Metaphase, Anaphase, and Telophase/cytokenesis. Mitosis describes the process in which the cell must duplicate and divide its cells in order to repair and replace other cells. While meiosis is the process for sex cells. At the end of the process they form 4 cells, a tetrad. Meiosis basically goes through PMAT twice, in order to form 23 chromosomes.

What I have found difficult:
I have a hard time remembering the shapes of different organisms within cells and that makes it really hard for me to label stuff. I can remember some things based on their color, like chloroplaste is green, but I cannot remember shapes.

How is structure related to function?
Cells are all very similar, therefore the shape of a cell can make all the difference. Cells go through various stages in order to obtain the shape that they do. Sometimes when a cell does not form properly they are like mutated cells and can be very dangerous for the organism. Cancer is spread due to a cell that did not form correctly, therefore the structure of a cell is essential to the proper and intended function.