1. Princeton Environmental Institute Bender Lab, Department of Geosciences Princeton University Natalie Saenz Advisors: Dr. Paul Gauthier Prof. Michael Bender Shedding Light on Plant Respiration

2. Introduction Bringing the Kok effect to light: A review on the integration of daytime respiration and net ecosystem exchange. (2013) M. Heskel, O. Atkin, M. Turnbull, K. Griffin

3. Plant Metabolism: Respiration

4. Methods  Stable Isotope Analyses

5. Results Conclusion The Kok effect does have a metabolic basis most likely linked to cellular respiration inhibition in the light

6.  Many thanks to Prof. Michael Bender and Dr. Paul Gauthier for their guidance, support, patience, and mentoring  PEI for making the summer internship possible Acknowledgements