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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.
Absolute time is one of the two types of geologic time (relative time being the other), with the distinct age date established generally by the decay of the radioactive elements,
Functions of Synergids Ultra structurally the structure and concentration of cell organelles reveals that synergids are metabolically active. The following Wee functions are a
What is circulation? Circulation is the movement of substances as nutrients and gases within blood vessels and cavities all by the organism.
Empyema: Empyema is accumulation of thick pus in the pleural cavity. Primary infection of pleura does not arise so the pathology may either be in chest wall, mediastinum or t
BIRT H CONTROL - Birth control methods which deliberately prevent fertilization are contraception. These methods may be temporary or permanent. 1 . TEMPORARY MET
What is life?
evolutionary effect of Oracle clinical applications in Pharmaceutical industries
How does substrate concentration affect the initial rate of an enzyme- catalyzed reaction?
A solute passes from higher concentration on the left of a container to the right side of container thru a membrane. What would happen if a second solute of lower concentration was
Q. What is the difference between cellular specific immune response and humoral specific immune response? Humoral specific immune response is the defense system by means of, an
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