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Cyanobacteria carry out photosynthesis using two photosystems as in green plants. Furthermore, other photosynthetic bacteria, like as the purple photosynthetic bacterium Rhodospirillum rubrum which have only a one photosystem reaction center. This can hold out cyclic electron transport, producing a proton gradient and thus synthesizing ATP (cyclic photophosphorylation). In other words, a noncyclic pattern of electron transport can be carried out in that the electrons from the cytochromes pass to NAD+ (rather than NADP as in green plants) to create NADH. The electron donor is, for instance, hydrogen sulfide (H2S) that produces sulfur (S). The Hydrogen gas (H2) and a various of organic compounds can also be used as electron donors by particular photosynthetic bacteria. Because H2O is not used as electron donor, no oxygen is formed.
Functional regions of digestive system In general the digestive system of metazoans is divided into 4 major functional regions of: Reception Conduction and s
Define Preoperative Nutritional Care during Surgery? It can be provided only to prospective candidates of elective surgery and is not feasible for emergency cases. Preoperative
Other Complications : Bioprosthetic valves have a tendency for degeneration, calcification or cusp perforation. Current models have overcome many of these problems. Calcification
what are the two reactants and the two products of a dehydration reaction/ What are the two reactants and products of a hydrolysis reaction
Define factors affect the rate and total drying time? Four main factors affect the rate and total drying time, which include: a) The properties of the products (the moisture
Digestive Enzymes Now let us consider the general principles of digestion that are applicable t6all animals. We will start with the digestive enzymes that breakdown the large
What is Kingdom Protista in diversity of life? Members of Kingdom Protista are grouped separately from the other eukaryotic kingdoms because most of the organisms have a unicel
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What is drugs? Intravenous access must be established. Although administration of drugs through a central vein is ideal in a low cardiac output situation, it is rarely possible
Subtropical rain forests - Ecosystem In regions of fairly high rainfall but less temperature differences between winter and summer and broad-leaved evergreen subtropical biome
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