MSC 316 Lecture Notes - Lecture 3: Carboxylation, Digitaria, Ribulose

• School: University of Miami
• Department: Marine Science
• Course: MSC 316
• Professor: Gary Hitchcock

Document Summary

Fluorescence: function of dissipating energy, chlorophyll molecules become excited, and to get back to ground state they release photons and heat. Carotenoids and photo-protection: they dissipate excess energy so to not damage cells, plants can do this by using carotenoids or by fluorescing, carotenoids do this by quenching high energy state of oxygen and excited electrons. Anthocyanin coloration: red color, used in conjunction with carotenoids for yellow and red colors in marigolds, seen in royal poinciana tree from madagascar. History: blackman (1905) demonstrated hyperbolic shape of photosynthesis intensity curve and related to irradiance and temperature dependence. Controlled light and water levels as well as temperature. Measured co2 by titrating with baoh and determining ph. As light intensity increases, you find that a light limited. Phase that exists depends on quantity of co2 present but photosynthesis can still occur with excess co2 and temperature. The dark-limited phase means independent of light, limited instead by co2 and temperature: warburg.