Fractionation of carbon isotopes in oxygenic photosynthesis Calvin cycle during the day, when stomata are closed to prevent water loss, and the light reactions can drive the necessary ATP and NADPH production. This pathway differs from C4 photosynthesis because CAM plants separate carbon by storing fixed CO in vesicles at night, then transporting it for use during the day. Thus, CAM plants temporally concentrate CO to improve Rubsico efficiency, whereas C4 plants spatially concentrate CO in bundle sheath cells. The distribution of plants which use CAM photosynthesis includes epiphytes (e.g., orchids, bromeliads) and xerophytes (e.g., succulents, cacti). In Crassulacean acid metabolism, isotopic fractionation combines the effects of
What Do I Do with Me covered by Reba McEntire for her 1994 album, "Read My Mind." As listed in liner notes. What Do I Do with Me What Do I Do with Me is a 1991 album by American country music singer Tanya Tucker. It was her highest-placing on the Billboard charts reaching #6 in the Country albums and #48 on the Pop albums categories. The album produced four Top Ten hits on the Hot Country Songs charts: "(Without You) What Do I Do with Me" and "Down to My Last Teardrop" both at number two, "Some Kind of Trouble" at number three, and "If