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Q. What is the molecule that donates hydrogen for photosynthesis, in sulfur photosynthetic bacteria?
In sulfur photosynthetic bacteria the substance that donates hydrogen is hydrogen sulfide (H2S) not water. Therefore there is no liberation of molecular oxygen but there is production of molecular sulfur (S2) Oxygen and sulfur has same number of valence electrons.
What is reduction? The most commonly understood definition of reduction is the removal of oxygen or addition of hydrogen ions. However, chemically, reduction can be defined as
#question.what is the mechanism of circulatory system .
Ur o l it h i a s i s The presence of calculi (urolith) in the urinary system is termed as urolithiasis, and the disease is characterized by distension of bladder and
Why is the cartilage more flexible than bone? in general, why does cartilage take longer to repair than bone?
Define effect of Caffeine on athletes? Caffeine is found in coffee, tea, colas and chocolates. Its doses at 3- 6 mg/d have been known to increase muscle contractility and aerob
Q. Differentiate between sterilization and disinfection? Sterilization is defined as freeing the object or substance from all life of any kind. It is the process by which an ar
Classification of hydrocolloids by function It must be clear to you now that gum ghatti, gum karaya, gum tragacanth ( classified as exudate gums) locust bean gum, guar g
Endospores are found in prokaryotes or eukaryotes?
Describe cytokinesis in a plant cell. Vesicles produced by the Golgi apparatus fuse at the midline of the cell to form the cell plate, a cell wall that elongates to divide th
This valve has the same basic features as of the Tricuspid Valve. It has an anterior and a posterior cusp. The anterior cusp is larger and is attached on the upper right part of t
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