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What are the major groups of photosynthetic bacteria?
The four groups of photosynthetic bacteria are brownish nonsulfur, green sulfur, purple sulfur, and purple nonsulfur bacteria. Bacteria constitute a significant domain of what are referred to as prokaryotic microorganisms.
In green and purple bacteria electrons to reduce CO2 come from?
H2S Green and purple bacteria carry out anoxygenic photosynthesis, using reduced molecules other than water, as an electron source for the generation of NADH and NADPH - Purple sulfur bacteria use reduced sulfur compounds as electron sources and accumulate sulfur granules within their cell - Green sulfur bacteria use reduced sulfur compounds as electron sources and deposit sulfur granules outside their cell - Purple nonsulfur bacteria use organics molecules as their electron sourcec
Why does some bacteria stain purple and some red?
The purple stained bacteria are called gram positive bacteria and retain the stain after washing by having a thick cell wall one one layer of a heavily crossed linked material called peptidoglycan. ( Google that ) The red stained bacteria are gram negative because they posses two thinner layers of peptidogylcan cell wall that that do not hold the gram stain and it is mostly washed away in rinsing the bacterial samples.
A primary difference between cyanobacteria and purple and green phototrophic bacteria is?
One primary difference is the type of pigments they use for photosynthesis. Cyanobacteria use chlorophyll a and phycobilins, while purple and green phototrophic bacteria use bacteriochlorophylls and carotenoids. Additionally, cyanobacteria produce oxygen as a byproduct of photosynthesis, while purple and green phototrophic bacteria do not.
What is determined of the Gram Stain?
The Gram stain determines the cell wall composition of bacteria. It categorizes bacteria into two groups based on their ability to retain or release a purple dye: Gram-positive bacteria retain the dye and appear purple, while Gram-negative bacteria do not retain the dye and appear pink. This staining technique is commonly used in microbiology to help identify and classify bacteria.
Which bacteria is bad?
purple bacteria is good but every other color is bad
What are the major groups of photosynthetic bacteria?
The four groups of photosynthetic bacteria are brownish nonsulfur, green sulfur, purple sulfur, and purple nonsulfur bacteria. Bacteria constitute a significant domain of what are referred to as prokaryotic microorganisms.
What causes low carbon dioxide levels in infants?
Photosynthetic organisms fixating it (such as plants or purple bacteria), and it dissolving in a liquid (e.g. the sea).
What are the kinds of photosynthetic bacteria?
The main types of photosynthetic bacteria are cyanobacteria, green sulfur bacteria, purple sulfur bacteria, and purple non-sulfur bacteria. These bacteria use sunlight to convert carbon dioxide and water into energy for growth and produce oxygen as a byproduct.
What are types of bacteria use light for energy?
Several species of bacteria use light for energy. Some of them include groups such as green sulfur bacteria, green nonsulfur bacteria, purple sulfur bacteria, purple nonsulfur bacteria, cyanobacteria (aka blue green algae) and many individuals from the genus Rhodobacter.
What type of bacteria is purple?
photosynthetic bacteria are proteobacteria that are phototrophic, capable of producing energy through photosynthesis.
Are purple s bacteria photosynthetic autotrophs?
i think so
What will happen after treating different types of bacteria with a Gram stain?
Some bacteria will appear purple, whereas other bacteria will appear red.
In MIO agar the ornithine decarboxylation reaction is indicated by a purple color a negative is yellow Why?
Probably because there is brom cresol purple in the medium. The bacteria ferments sugar which causes a decrease in pH, which optimalizes conditions for ornithine decarboxylation which again raises pH by formation of amines. Therefore, with ODC negative bacteria the pH will remain low which causes the indicator to change colour to yellow, and with ODC positive bacteria the pH will rise, and thus there will be no colour change. Source: http://aem.asm.org/cgi/reprint/23/4/710.pdf
In green and purple bacteria electrons to reduce CO2 come from?
H2S Green and purple bacteria carry out anoxygenic photosynthesis, using reduced molecules other than water, as an electron source for the generation of NADH and NADPH - Purple sulfur bacteria use reduced sulfur compounds as electron sources and accumulate sulfur granules within their cell - Green sulfur bacteria use reduced sulfur compounds as electron sources and deposit sulfur granules outside their cell - Purple nonsulfur bacteria use organics molecules as their electron sourcec
Is it true that bacteria use hydrogen sulphide during their photosynthesis?
Yes. Green sulphur bacteria and purple sulphur bacteria do. Other bacteria don't, and some don't photosynthesise at all.
What shape is pneumonia?
It is purple. The bacteria that cause it are gram-positive, which means that under the gram stain they become purple. Your lungs produce the lung stain when they are sick, so pneumonia is purple.
