Search results
Results from the WOW.Com Content Network
RuBisCO is important biologically because it catalyzes the primary chemical reaction by which inorganic carbon enters the biosphere.While many autotrophic bacteria and archaea fix carbon via the reductive acetyl CoA pathway, the 3-hydroxypropionate cycle, or the reverse Krebs cycle, these pathways are relatively small contributors to global carbon fixation compared to that catalyzed by RuBisCO.
In another approach to studying photosynthesis, light-absorbing pigments such as chlorophyll can be extracted from chloroplasts. Like so many important biological systems in the cell, the photosynthetic system is ordered and compartmentalized in a system of membranes. [9] Isolated chloroplasts from spinach leaves, viewed under light microscope
Phycoerythrin (PE) is a red protein-pigment complex from the light-harvesting phycobiliprotein family, present in cyanobacteria, [1] red algae [2] and cryptophytes, [3] accessory to the main chlorophyll pigments responsible for photosynthesis.The red pigment is due to the prosthetic group, phycoerythrobilin, which gives phycoerythrin its red color.
Most common annual vegetables have optimal germination temperatures between 75–90 F (24–32 C), though many species (e.g. radishes or spinach) can germinate at significantly lower temperatures, as low as 40 F (4 C), thus allowing them to be grown from seeds in cooler climates. Suboptimal temperatures lead to lower success rates and longer ...
The pineapple is an example of a CAM plant.. Crassulacean acid metabolism, also known as CAM photosynthesis, is a carbon fixation pathway that evolved in some plants as an adaptation to arid conditions [1] that allows a plant to photosynthesize during the day, but only exchange gases at night.
Green vegetables such as spinach provide magnesium because of the abundance of chlorophyll molecules, which contain the ion. Nuts (especially Brazil nuts , cashews and almonds ), seeds (e.g., pumpkin seeds ), dark chocolate , roasted soybeans , bran , and some whole grains are also good sources of magnesium.
In the laboratory, transgenic plants have been modified to increase photosynthesis (currently about 2% at most plants versus the theoretic potential of 9–10%). [69] This is possible by changing the rubisco enzyme (i.e. changing C 3 plants into C 4 plants [ 70 ] ), by placing the rubisco in a carboxysome , by adding CO 2 pumps in the cell wall ...
They combined thylakoids, which are used for photosynthesis, from spinach with a bacterial enzyme and an artificial metabolic module of 16 enzymes, which can convert carbon dioxide more efficiently than plants can alone, into cell-sized droplets. According to the study this demonstrates how natural and synthetic biological modules can be ...