Fractionation of carbon isotopes in oxygenic photosynthesis the C3 pathway in the daytime and the C4 pathway in the nighttime. At night, when temperature and water loss are lower, the CO diffuses through the stomata and produce malate via phosphenolpyruvate carboxylase. During the following day, stomata are closed, malate is decarboxylated, and CO is fixed by RuBisCO. This process alone is similar to that of C4 plants and yields characteristic C4 fractionation values of approximately -11‰. However, in the afternoon, CAM plants may open their stomata and perform C3 photosynthesis. In daytime alone, CAM plants have approximately -28‰ fractionation, characteristic of C3 plants. These combined effects provide
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