Cell+Wall+Period+2

= = *Cell Wall!*    Interesting Facts                   <span style="color: #ff0071; font-family: Georgia, serif;">The cell wall is made up of cellulose. <span style="color: #ff0071; font-family: Georgia, serif;">They are a feature of plant cells. <span style="color: #ff0071; font-family: Georgia, serif;">Mature cells add substances to the primary cell wall for additional strength or to make it waterproof. <span style="color: #ff0071; font-family: Georgia, serif;">The fibres of cell walls are laid down in different directions to add strength. <span style="color: #ff0071; font-family: Georgia, serif;">Cell walls contain other substances making a tough matrix. There is a "glue" between the cell walls of adjacent cells. <span style="color: #ff0071; font-family: Georgia, serif;">Cell walls work with the vacuole to make a cell turgid and to help support the plant. <span style="color: #ff0071; font-family: Georgia, serif;">Animal cells do not have a cell wall. <span style="color: #ff0071; font-family: Georgia, serif;">The cell wall is non-living secertion of the cell membrane, composed of the cellulose. <span style="color: #ff0071; font-family: Georgia, serif;">The cell wall provides protection from physical injury. <span style="color: #ff0071; font-family: Georgia, serif;">The cell wall together with vacuole, provides skeletal support. <span style="color: #ff0071; font-family: Georgia, serif;">The cell wall extracellular structure surrounding plasma membrane. <span style="color: #ff0071; font-family: Georgia, serif;">The cell wall is composed of cellulose fiber, polyasaccharides, and proteins. <span style="color: #ff0071; font-family: Georgia, serif;">The cell wall serves a similar purpose in those organisms that possess them. <span style="color: #ff0071; font-family: Georgia, serif;">Most cell walls are porous enough to allow water, oxygen, carbon dioxide, and other substances to pass through easily. <span style="display: block; color: #ff008f; font-family: Georgia, serif; text-align: center;"> <span style="display: block; color: #ff008f; font-family: Georgia, serif; text-align: center;"> <span style="display: block; color: #ff008f; font-family: Georgia, serif; text-align: center;"> <span style="display: block; color: #ff008f; font-family: Georgia, serif; text-align: center;"> <span style="display: block; color: #ff008f; font-family: Georgia, serif; text-align: center;"> <span style="display: block; color: #ff008f; font-family: Georgia, serif; text-align: center;"><span style="display: block; color: #2300ff; font-family: Tahoma, Geneva, sans-serif; text-align: left;"> <span style="display: block; color: #ff008f; font-family: Georgia, serif; text-align: center;"> <span style="display: block; color: #ff008f; font-family: Georgia, serif; text-align: center;"> <span style="display: block; color: #ff008f; font-family: Georgia, serif; text-align: center;"> <span style="display: block; color: #ff008f; font-family: Georgia, serif; text-align: center;">  <span style="display: block; color: #ff008f; font-family: Georgia, serif; text-align: center;"> <span style="display: block; color: #ff008f; font-family: Georgia, serif; text-align: center;"> http://www.historyoftheuniverse.com/cellwal.html http://www.kscience.co.uk/as/module1/cell_wall.htm                                          http://content.answers.com/main/content/wp/en-commons/thumb/4/45/400px-Plant_cell_structure_svg.svg.png        http://library.thinkquest.org/12413/structures.html  ===
 * <span style="color: #ff0071; font-family: Georgia, serif;">A cell wall is a tough, flexible, and sometimes fairly rigid layer surrounding a cell.
 * <span style="color: #ff0071; font-family: Georgia, serif;">The cell wall is one of the features of a plant cell that distinquishes them from animal cells.
 * <span style="color: #ff0071; font-family: Georgia, serif;">The wall protects the plant cell, maintauns its shape, and prevents excessive uptake of water. On level of the whole plant, the strong walls of specialized cells hold the plant up againest the force of gravity.