What does purple bacteria mean?
Definitions for purple bacteria
pur·ple bac·te·ri·a
This dictionary definitions page includes all the possible meanings, example usage and translations of the word purple bacteria.
Princeton's WordNet
purple bacterianoun
free-living Gram-negative pink to purplish-brown bacteria containing bacteriochlorophyll
ChatGPT
purple bacteria
Purple bacteria, also known as purple phototrophic bacteria, are a type of bacteria that are capable of photosynthesis. They are commonly found in aquatic environments, especially in areas that are low in oxygen. They are named after their often purple pigmentation, which originates from pigments in their photosynthetic membranes. These pigments, mainly bacteriochlorophylls and carotenoids, allow the bacteria to harvest energy from sunlight. There are two main types of purple bacteria: purple sulfur bacteria, which produce sulfur as a byproduct of photosynthesis, and purple nonsulfur bacteria, which usually use organic molecules as an electron source for photosynthesis.
Freebase
Purple bacteria
Purple bacteria or purple photosynthetic bacteria are proteobacteria that are phototrophic, that is, capable of producing energy through photosynthesis. They are pigmented with bacteriochlorophyll a or b, together with various carotenoids, which give them colours ranging between purple, red, brown, and orange.
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Numerology
Chaldean Numerology
The numerical value of purple bacteria in Chaldean Numerology is: 6
Pythagorean Numerology
The numerical value of purple bacteria in Pythagorean Numerology is: 3
Examples of purple bacteria in a Sentence
The big question, and a topic of active scientific debate, is whether the purple bacteria living on the ancient Earth had the ability to protect themselves from UV radiation well enough to inhabit vast expanses of the land surface, like plants do on the modern Earth, the spectral signature of the pigment would be much stronger if the pigmented bacteria covered the land surface.
However, in the deep past, before oxygen accumulated in the atmosphere, these purple bacteria might have proliferated to such an extent that they could have been detectable on the Earth's surface.
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"purple bacteria." Definitions.net. STANDS4 LLC, 2023. Web. 27 Sep. 2023. <https://www.definitions.net/definition/purple+bacteria>.
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