Fractionation of carbon isotopes in oxygenic photosynthesis values more similar to C3 plants. In contrast to terrestrial plants, where CO diffusion in air is relatively fast and typically not limiting, diffusion of dissolved CO in water is considerably slower and can often limit carbon fixation in phytoplankton. As gaseous CO is dissolved into aqueous CO, it is fractionated by both kinetic and equilibrium effects that are temperature-dependent. Relative to plants, the dissolved CO source for phytoplankton can be enriched in C by about 8‰ from atmospheric CO. Isotope fractionation of C by phytoplankton photosynthesis is affected by the diffusion of extracellular aqueous CO into the cell, the
What Do You Take Me For? What Do You Take Me For? "What Do You Take Me For?" is a song by English singer Pixie Lott from her second studio album, "Young Foolish Happy" (2011). The song features American rapper Pusha T and was released on 4 November 2011 as the album's second single. The track received its first play on Capital FM on 26 September 2011. Robert Copsey of "Digital Spy" gave the song four out of five stars, stating: "Fortunately, the rest of the track is less spooktacular and more in-yer-face girl power. 'Don't know what you think I'm after/ What do you take