101. Desert Food Chain-k12 Part 2 In photosynthesis, a plant’s green leaves, fueled by sunlight – a form of solarenergy – use water and carbon dioxide as raw materials to manufacture food http://www.desertusa.com/food_chain_k12/kids_2.html

The Desert Food Chain Part 2 (For the Younger Crowd) By Jay W. Sharp Q: A: How It Works The leaf uses its solar energy to trigger and fuel its manufacturing process, a two-stage, highly complex chemical reaction that converts the water and carbon dioxide into carbohydrates and oxygen. When it has adequate moisture, our leaf proceeds with the process of photosynthesis throughout the daylight hours. With the fall of darkness, it shuts down its solar collectors. It closes its stomata. It winds down the manufacturing process. It rests during the night. Desert Adaptations In the desert , where moisture can be so scarce, some plants have adapted a water-saving modification to the process of photosynthesis. These plants include, primarily, the succulents, for instance, agaves such as the Century Plant, which grows widely across our Southwestern deserts, or the yuccas such as the Joshua Tree, which grows in the Mojave Desert. The succulents are distinguished by waxy green leaves or stems that have tissues designed for storing water. Unlike trees, which have leaves that open their stomata during the heat of desert days and close them during the cool of the night, the agaves and yuccas have leaves that close their stomata

102. Chlorophyll Since animals and humans obtain their food supply by eating plants, photosynthesiscan be said to be the source of our life also. http://www.chm.bris.ac.uk/motm/chlorophyll/chlorophyll_h.htm

Chlorophyll Paul May School of Chemistry, University of Bristol VRML Chemsymphony , and Chime versions Chlorophyll is the molecule that absorbs sunlight and uses its energy to synthesise carbohydrates from CO and water. This process is known as photosynthesis and is the basis for sustaining the life processes of all plants. Since animals and humans obtain their food supply by eating plants, photosynthesis can be said to be the source of our life also. Chlorophyll is the green coloration in leaves. Photosynthesis In 1780, the famous English chemist Joseph Priestley (right) found that plants could " restore air which has been injured by the burning of candles ." He used a mint plant, and placed it into an upturned glass jar in a vessel of water for several days. He then found that " the air would neither extinguish a candle, nor was it all inconvenient to a mouse which I put into it ". In other words, he discovered that plants produce oxygen. A few years later, in 1794, the French chemist Antoine Lavoisier (left), discovered the concept of oxidation, but soon after was executed during the French Revolution for being a Monarchist sympathiser. The judge who pronounced sentence said " The Republic has no need for scientists So it fell to a Dutchman

103. Coming Soon! www.plants.org. This Web page is parked free, courtesy of GoDaddy.com! Save onDomain names, Web hosting, email accounts, secure SSL certificates, http://www.plants.org/

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