Wednesday, November 17, 2010

Plants and animal cells

plant_cell.jpgPlant cells and animal cells both have a cell membrane, nucleus, and cytoplasm. But in a plant cells it has a cell wall and it has chloroplast that is unique to just plant cells. A plant cell use lights rays from the sun to create sugars that provide the plant with nutrients. With an animal cell it has Centrosome which divids the cells, and Centriolise. Animal cells cant use light like plant cells do instead it relies on individual cells to break down nutrients that is absorbed into the body.

Tuesday, November 9, 2010

Fluid Mosaic modle

In this project i didn't really understand how the cells worked. I didn't understand what the different proteins were and what they did but now i know.The different proteins in this cells are integral and peripheral proteins, integral proteins are hydrophobic and peripheral proteins are hydrophilic. After reading and doing our experiments in the class room i  came to under stand how this worked, a little better than i did before. one lets negative ions pass and the other lets positive ions pass. phospholipids are like the shell of the cell they cover the entire cell and  have little tentacles to grab on to  each other with and they connect the cell. That is all i have for today.