MDC BSC 2010 - Photosynthesis (68 pages)

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Photosynthesis



Previewing pages 1, 2, 3, 4, 5, 32, 33, 34, 35, 64, 65, 66, 67, 68 of actual document.

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Photosynthesis

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Pages:
68
School:
Miami Dade College
Course:
Bsc 2010 - Prin Of Biology 1

Unformatted text preview:

Chapter 10 Photosynthesis PowerPoint Lectures for Biology Seventh Edition Neil Campbell and Jane Reece Lectures by Chris Romero Copyright 2005 Pearson Education Inc publishing as Benjamin Cummings Overview The Process That Feeds the Biosphere Photosynthesis is the process that converts solar energy into chemical energy Directly or indirectly photosynthesis nourishes almost the entire living world Copyright 2005 Pearson Education Inc publishing as Benjamin Cummings Autotrophs sustain themselves without eating anything derived from other organisms Autotrophs are the producers of the biosphere producing organic molecules from CO2 and other inorganic molecules Almost all plants are photoautotrophs using the energy of sunlight to make organic molecules from water and carbon dioxide Copyright 2005 Pearson Education Inc publishing as Benjamin Cummings Copyright 2005 Pearson Education Inc publishing as Benjamin Cummings Photosynthesis occurs in plants algae certain other protists and some prokaryotes These organisms feed not only themselves but also the entire living world Copyright 2005 Pearson Education Inc publishing as Benjamin Cummings LE 10 2 Plants Unicellular protist 10 m Purple sulfur bacteria Multicellular algae Cyanobacteria 40 m 1 5 m Heterotrophs obtain their organic material from other organisms Heterotrophs are the consumers of the biosphere Almost all heterotrophs including humans depend on photoautotrophs for food and oxygen Copyright 2005 Pearson Education Inc publishing as Benjamin Cummings Concept 10 1 Photosynthesis converts light energy to the chemical energy of food Chloroplasts are organelles that are responsible for feeding the vast majority of organisms Chloroplasts are present in a variety of photosynthesizing organisms Copyright 2005 Pearson Education Inc publishing as Benjamin Cummings Chloroplasts The Sites of Photosynthesis in Plants Leaves are the major locations of photosynthesis Their green color is from chlorophyll the green pigment within



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