Reading: Photosynthesis and Atmospheric Carbon Dioxide

A reading that discusses the effects of elevated CO2 levels on the photosynthetic efficiency of field-grown plants.

Students will learn about the difference in the physiological and biochemical responses of C3 and C4 plants to rising levels of atmospheric carbon dioxide. Additionally, they will learn about changes in stomatal conductance affecting efficiency of carbon fixation and water uptake in plants under these conditions.

Use this tool to help students find answers to:

  1. What are the key differences between C3 and C4 plants?
  2. Discuss the impact of increasing global CO2 levels on photosynthesis?

About the Tool

Tool Name Effects of Rising Atmospheric Concentrations of Carbon Dioxide on Plants
Discipline Biological Sciences
Topic(s) in Discipline Photosynthesis, Photosynthetic Efficiency, Factors affecting Photosynthesis, C3 Plants, C4 Plants, CAM Plants, Calvin Cycle
Climate Topic Climate and the Biosphere
Type of Tool Reading
Grade Level High school, Undergraduate
Location Global
Language English
Developed by Daniel R. Taub, Biology Department, Southwestern University
Hosted at Nature Education Knowledge Project
Access Online, Offline
Computer Skills Basic



The internal structure of a chloroplast
Image: Wikipedia
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