PPT-Higher Biology Unit 3 3.1 - Photosynthesis

Photosynthesis Revision Answer these questions on photosynthesis from N5 What is the photosynthesis word equation How many stages are there to photosynthesis Give 2 examples of the uses of the product of photosynthesis. *. Photosynthesis. – process of capturing light . . energy. from the sun to convert water & CO. 2. . . into oxygen and high energy carbohydrates . (food, ex: glucose, starch, & other sugars). Lab. 5: Photosynthesis. Lab. 5: Photosynthesis. Leaves float in water due to presence of air (air spaces) in the leaf. . How does one get them to sink?. Lab. 5: Photosynthesis. Put leaf discs under vacuum . Define Photosynthesis. The process by which plants manufacture (make) carbohydrates from raw materials using energy from the light.. Word and Chemical equation of Photosynthesis. 6CO. 2. + 6H. 2. O . Bryanna Wolfe. ECE 2320. October 2012. Start Here. Objective:. . When you get hungry you might decide to raid the cookie jar or ask your mom to make you a sandwich. You do this because humans and animals get energy from the foods they eat. Energy . and Life. Plants and some other types of organisms are able to use light energy from the sun to produce food.. Autotrophs. : organisms such as plants, which make their own food. Heterotrophs. 1. ENERGY AND LIFE. OBJECTIVES: 8.1. Explain where plants get the energy they need to produce food.. Describe the role of ATP (adenosine . triphosphate. ) in cellular activities.. 2. Energy is the ability to do work.. Why Study Photosynthesis?. *All food webs start with photosynthesis!*. Photosynthesis is arguably the most important biological process on earth because of two key chemical reactions. Liberating oxygen:. Leaf Disc Assay. A Block. Spinach (Control). Arugula. Number of Discs Floating. Time. (seconds). Number of . Discs Floating. Time. (seconds). 1. 10. 1. 57. 2. 20. 2. 69. 3. 27. 3. 79. 4. 36. 4. 79. 5. Photosynthesis. . Process. = plant cells use light energy to rearrange water and carbon dioxide molecules into sugar . molecules. Oxygen is a by-product (leftover, waste product). Energy now stored in the sugar. And Respiration of Plants. By: Annette Miles. Photosynthesis is a process by which plants turn energy from the ____ into _______ or _______________. . sun. glucose. carbohydrates. First, _______________ strikes the leaf, passes into the leaf, and hits a ______________ inside an individual cell. . What is the . ideal combination of factors . for the . maximum . rate of photosynthesis? . enough light. . enough carbon dioxide. . ideal temperature . (not too hot or cold). How is the rate affected if one of these factors is . Refer to . pg. . 83-92 . in . Holtzclaw. , . Ch. 10 in Campbell and media resources. . Refer . to . pg. . 297. -299 . in . Holtzclaw. , Lab . Inv. 5 . in . Lab Manual. Try This!. Where does the biomass of a tree primarily come from?. Photosynthesis. Photosynthesis. is the process by which plants, some . bacteria use . the energy from sunlight to produce sugar and starches ……which . cellular respiration. converts into . ATP. Photosynthesis. - a process used by plants and other autotrophs to convert the light energy captured from the sun into chemical energy that can be used to fuel the organism’s activities. . *It is the way plants make food! .