Effects of Sharing Meals
Photosynthesis occurs in the green leaves of plants. How is photosynthesis important in the flow of carbon through an ecosystem?
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Textbook Table of Contents
Ten
C H A P T E R
1 0
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Photosynthesis
Chapter Outline
CHAPTER OUTLINE
Photosynthetic organisms are autotrophs.
What is light?
Pigments absorb light, which drives photosynthesis.
Photosynthesis requires both photochemical and biochemical reactions to produce sugars.
Chloroplasts are the site of photosynthesis in plants.
The light reactions of photosynthesis produce ATP.
The light reactions of photosynthesis also produce NADPH.
Perspective 10.1 The Evolution of the Light Reactions
The biochemical reactions convert CO2 to carbohydrates. Rubisco is not perfect and fuels carbon loss via photorespiration. Perspective 10.2 The Evolution of Photosynthesis:
Why Aren’t Plants Black?
Perspective 10.3 How Did Such a Wasteful Process as
Photorespiration Evolve?
C4 photosynthesis employs two CO2 fixation steps and probably evolved during times of low CO2 levels in the atmosphere.
Perspective 10.4 Why Don’t C4 Plants Dominate the
Landscape?
Crassulacean acid metabolism (CAM) is the third main type of photosynthesis known and probably evolved in arid ecosystems.
What environmental factors affect the rates of photosynthesis? What happens to the products of the Calvin cycle?
Perspective 10.5 Atmospheric CO2 and Photosynthesis
Learning Online
LEARNING ONLINE
The Online Learning Center at www.mhhe.com/botany provides practice quizzes and key term flashcards to help you study for upcoming exams and assignments. Do you know how the release of oxygen in ancient atmospheres was important to the evolution of plants and animals? Visit http:/
/photoscience.la.asu.edu/photosyn
in chapter 10 of the OLC to learn more about photosynthesis and the formation of carbohydrates.
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v
231
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e-Text Main Menu
v
\ v |
|
e-Text Main Menu
|
Textbook Table of Contents
Ten
C H A P T E R
1 0
`
Photosynthesis
Chapter Outline
CHAPTER OUTLINE
Photosynthetic organisms are autotrophs.
What is light?
Pigments absorb light, which drives photosynthesis.
Photosynthesis requires both photochemical and biochemical reactions to produce sugars.
Chloroplasts are the site of photosynthesis in plants.
The light reactions of photosynthesis produce ATP.
The light reactions of photosynthesis also produce NADPH.
Perspective 10.1 The Evolution of the Light Reactions
The biochemical reactions convert CO2 to carbohydrates. Rubisco is not perfect and fuels carbon loss via photorespiration. Perspective 10.2 The Evolution of Photosynthesis:
Why Aren’t Plants Black?
Perspective 10.3 How Did Such a Wasteful Process as
Photorespiration Evolve?
C4 photosynthesis employs two CO2 fixation steps and probably evolved during times of low CO2 levels in the atmosphere.
Perspective 10.4 Why Don’t C4 Plants Dominate the
Landscape?
Crassulacean acid metabolism (CAM) is the third main type of photosynthesis known and probably evolved in arid ecosystems.
What environmental factors affect the rates of photosynthesis? What happens to the products of the Calvin cycle?
Perspective 10.5 Atmospheric CO2 and Photosynthesis
Learning Online
LEARNING ONLINE
The Online Learning Center at www.mhhe.com/botany provides practice quizzes and key term flashcards to help you study for upcoming exams and assignments. Do you know how the release of oxygen in ancient atmospheres was important to the evolution of plants and animals? Visit http:/
/photoscience.la.asu.edu/photosyn
in chapter 10 of the OLC to learn more about photosynthesis and the formation of carbohydrates.
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v
231
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e-Text Main Menu