1. MOST LIKELY TO BECOME WEIGHT- LIFTING CHAMPION CELL WALL ORGANELLE CLASS OF 2012

2. Cell wall: 10-100 times stronger than plasma membrane Strengthened by lignin molecules Protects the cell it surrounds Provides support to plants

3. Primary cell wall: Thin, flexible wall of cellulose, polysaccharides, and proteins. Created first to let cell grow Secondary cell wall: Added in laminated layers after primary cell wall for strength Plasmodesmata: Channels between plant cells. Water, nourishment, and chemical messages shared between cells Primary cell wall Secondary cell wall Plasma membrane Cytoplasm Plasmodesma Cell wall surrounds the cell to protect it and provide skeletal support to the plant Cell walls only in plants

4. The cell wall is like the walls of a room in a skyscraper because it protects the cell and provides support for the overall structure, like a skyscraper’s walls protect the things inside and allow the skyscraper to become taller.

5. Works Cited Campbell, Neil A. Biology: Concepts and Connections. San Francisco: Benjamin Cummings, 2009. Print. Plant cell walls and cell junctions. Biology: Concepts and Connections. By Neil A. Campbell. San Francisco: Benjamin Cummings, 2009. 68. Print.