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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.
Unlike bilaterally symmetrical animals, radially symmetrical animals are almost never able to move themselves from place to place. Why might it have been so difficult for radially
Gene targeting in ES cells: In some of the livestock species pro-nuclear injection cannot be used to modify the animals' own genes due to various reasons especially non availabil
introduction in fungai
Give the introduction of genesis of coronary artery diseases and risk factors? Cardio-vascular diseases have their roots in the structure and functional alterations in the vasc
Q. What are the epithelial tissues? What is their general function and how is that function associated to the features of the tissue? Epithelial tissues also called as epitheli
How substrate-level phosphorylation (SLP) differs from oxidative phosphorylation. Which pathways produce ATP via SLP? Where in cell oxidative phosphorylation (prokaryotes/eukaryote
Starch is one of the most common storage products in seeds. What happens to the starch before it can be used by the germinating seed? Starch is insoluble and has to be changed,
what is the process of nitrogen fixation in soil by bacteria
Explain the Composition of Blood Agar? Infusion from beef heart - 500 gm Tryptose - 10.0 gm Sodium Chloride - 5.0 gm Agar - 15 gm Distilled water - 1000 ml pH
Monomeric enzymes Monomeric enzymes are those which consist of only a single polypeptide chain, so they cannot be dissociated into smaller units. Very few monomeric enzymes are
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