Meaning of chemosynthesis | FactMonster
An example of a chemosynthesis reaction using hydrogen sulfide proceeds as follows:
Developing Your What Is Chemosynthesis Thesis - …
The most extensive ecosystem based on chemosynthesis lives around undersea hot springs. At these hydrothermal vents, a chemical-rich soup bubbles out of the crust and into the bottom of the sea. Boiling hot, saturated with toxic chemicals and heavy metals, and more acidic than vinegar, vent waters are deadly to most marine animals.
The chemosynthetic reaction 6CO2 + 6H2S → C6H12O6 + 6S also helped to determine that it was water, rather than carbon dioxide, that generated oxygen in photosynthesis. This was because H2S was seen as analogous to H2O, and sulfur bacteria produced sulfur rather than oxygen as a byproduct.
What is the name of the process in..
But life based on chemosynthesis is also precarious. The hydrothermal ventsthe source of life-sustaining chemicalscan be extinguished at any time by earthquakes, lava flows, or rock falls. Many vents close after a few months or years, and few seem to survive more than a couple of decades. Once the supply of chemicals stops, the bacteria die and the rest of the fauna either migrates or perishes.
Chemosynthetic communities are also found in marine settings other than hydrothermal vents. At so-called cold-seeps, where tectonic activity squeezes mineral water out of the ground and around sea bottom petroleum deposits, methane, ammonia, and hydrogen sulfide are released. Bacteria use these compounds to make organic molecules, which support a web of symbionts, carnivores, and scavengers.
This process is called chemosynthesis.
Deep-sea chemosynthetic bacteria are attracting the attention of a wide range of scientists interested in their commercial potential. Biochemists intrigued by the ability of these tiny, delicate looking creatures to turn toxic chemicals into harmless compounds, hope to use such bacteria to clean up hazardous waste. Chemists seek to isolate the enzymes that allow chemosynthetic microbes to function under extremely high temperatures and put them to industrial use.
Despite the total darkness, crushing water pressure, and temperatures that swing from above boiling to near freezing, life is good at hydrothermal vents thanks to chemosynthetic bacteria. Vent faunas have both large biomass and high diversityover 300 species of animals have been found at vents, most living nowhere else on the planet.
What is Chemosynthesis? (with pictures) - wiseGEEK
Most organisms that use chemosynthesis ..
Chemosynthesis and photosynthesis are processes by which organisms use an energy source to create food
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Six facts about photosynthesis: The process mostly takes place in the chloroplasts of plant leaf mesophyll cells
Chemosynthesis images, pictures, videos & interesting facts
06/09/2011 · Environmental definitions to impress your friends. What is Chemosynthesis?
Deep Sea Creatures | Chemosynthesis
Two categories of chemosynthetic reactions can be distinguished. In the rare sites at which hydrogen molecules (H2) are available, the energy available from the reaction between CO2 and H2, leading to production of , CH4, can be large enough to drive the production of biomass. Alternatively, in most oceanic environments, energy for chemosynthesis derives from reactions in which substances such as or are oxidized. This may occur with or without the presence of oxygen.
10 Facts on Photosynthesis | Sciencing
While all this is going on, the process is called photosynthesis, and then oxygen is made. But the plant doesn’t need all that oxygen so off it goes into the air and lucky for us, we can then breathe properly and stay alive.
Chemosynthesis and Hydrothermal Vent Life23
There was a time a very, very long time ago when there wasn’t much oxygen around so animals and humans couldn’t exist. Well what made it all happen? The plants of course! It was only because of photosynthesis that more and more oxygen was made which meant that animals and humans could develop. Think about it this way, without photosynthesis we wouldn’t even be around.
Photosynthesis For Kids | Cool Kid Facts
Many chemosynthetic microorganisms are consumed by other organisms in the ocean, and associations between chemosynthesizers and respiring heterotrophs are quite common. Large populations of animals can be supported by chemosynthetic at , , , and .
Six facts about photosynthesis - KScience
In 1890, Sergei Nikolaevich Vinogradskii (Winogradsky) proposed a novel life process called chemosynthesis. His discovery suggested that some microbes could live solely on inorganic matter emerged during his physiological research in 1880s in Strassburg and Zurich on sulfur, iron, and nitrogen bacteria.
The energy for photosynthesis comes from light
In biochemistry, chemosynthesis is the biological conversion of one or more carbon molecules (usually or ) and nutrients into organic matter using the of inorganic molecules (e.g. gas, ) or methane as a source of energy, rather than sunlight, as in . , that obtain carbon through chemosynthesis, are phylogenetically diverse, but groups that include conspicuous or biogeochemically-important taxa include the sulfur-oxidizing gamma and epsilon proteobacteria, the , the archaea and the neutrophilic iron-oxidizing bacteria. In addition, many microorganisms in dark regions of the oceans also use chemosynthesis to produce biomass from single carbon molecules.
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