ࡱ> ac`%` bjbjNN 4:,,<<<Pxxxx,DPMn:....u> MMMMMMM$NheQ4M<S"u4M..%IM|R.<.MMI"<L. 0kDxxO8K,M_M0MdKLCRCRXLL"CR<L<4M4MMPPPPPPPPP Name __________________ Pd ___________ Date _______________ Illuminating Photosynthesis WebQuest Type in the following link:  HYPERLINK "http://www.pbs.org/wgbh/nova/methuselah/photosynthesis.html#" http://www.pbs.org/wgbh/nova/methuselah/photosynthesis.html# Read the introduction entitled Illuminating Photosynthesis by Rick Groleau Click on the link that reads: Go to Illuminating Photosynthesis. Read the introductory poem. Click on The Cycle at the top of the box 1. Click on each of the following items, and explain what happens: The shade over the window: The container of water: The child: 2. a. What gas does the child provide for the plant to use? b. What gas does the plant provide for the child to use? c. Will the plant continue to produce this gas if the shade over the window is closed? __________________________________________________________________ According to this animation, what 3 main things does the plant need for photosynthesis to occur? (1) (2) (3) Click on The Atomic Shuffle at the top of the box. Read the introductory poem, and click on next What type of molecule is shown in the leaf? ___________________ Draw one of the molecules below, as it is shown in the leaf.  According to the reading, these molecules do not come from the tap. What two places do they come from? (1) (2) Click on next and watch carefully. You may click on replay to watch this again. a. What is stripped from each water molecule? ________________________________________________________________ b. From where does the cell get the energy to do this? ____________________ c. The stripped molecules form pairs. Where does it go after this? Click on next a. What gas enters the leaf? _______________________ b. This gas enters through holes in the leaf. What are they called? ________________ Click on next What molecule is formed once again? _____________________ Click on next Another molecule is formed (and boy is it sweet). What is the chemical formula? What is the name of this molecule? ________________________________ Click on Three Puzzlers at the top of the box. Answer each of the following questions, and explain in your own words. a. Can a tree produce enough oxygen to keep a person alive? Explain. b. Can a plant stay alive without light? c. Can a plant survive without oxygen? Explain. ____________ Photosynthesis Webquest: Part 2 I. The sun's energy. Part of the sun's energy comes to earth in the form of light. Let's find out what colors of light plants absorb to make photosynthesis happen. Go to the following site:  HYPERLINK "http://www.mhhe.com/biosci/esp/2001_gbio/folder_structure/ce/m6/s1/" http://www.mhhe.com/biosci/esp/2001_gbio/folder_structure/ce/m6/s1/ 1st Page Define the following: a. Photosythesis b.Carbohydrates c.electrons 2. Photosynthesis stores the energy of light in the form of chemical _________ in carbohydrates. 3. ________________ provides the electrons needed to build carbohydrates. 4, When water is split, ____________ gas is given off into the atmosphere. 5. _________________ is the gas that is the source of carbons for the carbohydrates being made. 2nd Page In relation to the entire electromagnetic spectrum, how much of it is visible light? What do you think ROYGBIV stands for? 3rd Page __________ are chemicals that absorb certain wavelengths of light and reflect others. ______________ is a very important pigment that tends to absorb violet, blue, and red light, but reflects ____________ light. The color we see is the color that is _______________ and not absorbed. 4th Page _________________ pigments help chlorophyll molecules by absorbing a broader range of wavelengths. The orange, red, and yellow accessory pigments become visible when chlorophyll production decrease in the fall and no longer hides or masks the accessory pigments. Describe the flow of energy from the sun to the "reaction center": II. Overview of the whole process of photosynthesis. Let's review all the raw materials needed for photosynthesis. Go to the following site:  HYPERLINK "http://www.scholastic.com/magicschoolbus/games/frizfreshfacts/index.htm" http://www.scholastic.com/magicschoolbus/games/frizfreshfacts/index.htm Click on Launch Friz TV Click on the "F"activity and record two things that Liz (the dinosaur) does to make the sunflower grow. a. b. What gas causes the plant to sigh? What happens when the sun button is pushed? Click on Liz and explain how Liz and the plant are helping each other. Now click on "The Facts" button and answer the following questions by reading the dialog between Ms. Frizzle and Ms. Chlora. What are the plant veins called which transport water? What are the openings that allow carbon dioxide into the leaf? What is the plant's main nutrition source? What waste product of plants benefit humans? .1hq  @ E O U W _ d o r w y # ' * - ! / ? 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