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  1. en.wikipedia.org › wiki › B_vitaminsB vitamins - Wikipedia

    B vitamins are a class of water-soluble vitamins that play important roles in cell metabolism and synthesis of red blood cells. [1] They are a chemically diverse class of compounds; some contain sulfur and B12 contains cobalt. [1] Dietary supplements containing all eight are referred to as a vitamin B complex.

  2. en.wikipedia.org › wiki › Vitamin_B12Vitamin B12 - Wikipedia

    Vitamin B12, also known as cobalamin, is a water-soluble vitamin involved in metabolism.[2] It is one of eight B vitamins. It is required by animals, which use it as a cofactor in DNA synthesis, and in both fatty acid and amino acid metabolism.[3] It is important in the normal functioning of the nervous system via its role in the synthesis of ...

    • Readily absorbed in distal half of the ileum.
    • liver
    • C₆₃H₈₈CoN₁₄O₁₄P
  3. In immunology, a memory B cell ( MBC) is a type of B lymphocyte that forms part of the adaptive immune system. These cells develop within germinal centers of the secondary lymphoid organs. Memory B cells circulate in the blood stream in a quiescent state, sometimes for decades. [1] Their function is to memorize the characteristics of the ...

  4. en.wikipedia.org › wiki › BB - Wikipedia

    B, or b, is the second letter of the Latin alphabet, used in the modern English alphabet, the alphabets of other western European languages and others worldwide. Its name in English is bee (pronounced / ˈbiː / ), plural bees. [1] [2] It represents the voiced bilabial stop in many languages, including English. In some other languages, it is ...

  5. en.wikipedia.org › wiki › BelgiumBelgium - Wikipedia

    Belgium, [A] officially the Kingdom of Belgium, [B] is a country in Northwestern Europe. The country is bordered by the Netherlands to the north, Germany to the east, Luxembourg to the southeast, France to the south, and the North Sea to the west. It covers an area of 30,689 km 2 (11,849 sq mi) [4] [12] and has a population of more than 11.5 ...

  6. en.wikipedia.org › wiki › PenicillinPenicillin - Wikipedia

    Penicillins ( P, PCN or PEN) are a group of β-lactam antibiotics originally obtained from Penicillium moulds, principally P. chrysogenum and P. rubens. Most penicillins in clinical use are synthesised by P. chrysogenum using deep tank fermentation [2] and then purified. [3] [4] A number of natural penicillins have been discovered, but only two ...

  7. en.wikipedia.org › wiki › Blue_whaleBlue whale - Wikipedia

    Balaenoptera sibbaldii Sars , 1875. The blue whale ( Balaenoptera musculus) is a marine mammal and a baleen whale. Reaching a maximum confirmed length of 29.9 meters (98 ft) and weighing up to 199 tonnes (196 long tons; 219 short tons), it is the largest animal known ever to have existed. [3] [a] The blue whale's long and slender body can be of ...

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