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B vitamins are a class of water-soluble vitamins that play important roles in cell metabolism and synthesis of red blood cells. [ 1][ 2] They are a chemically diverse class of compounds. [ 1] Dietary supplements containing all eight are referred to as a vitamin B complex. Individual B vitamins are referred to by B-number or by chemical name ...
Thiamine, also known as thiamin and vitamin B 1, is a vitamin, an essential micronutrient for humans and animals. [3] [4] It is found in food and commercially synthesized to be a dietary supplement or medication. [1] [5] Phosphorylated forms of thiamine are required for some metabolic reactions, including the breakdown of glucose and amino ...
Photosynthesis ( / ˌfoʊtəˈsɪnθəsɪs / FOH-tə-SINTH-ə-sis) [ 1] is a system of biological processes by which photosynthetic organisms, such as most plants, algae, and cyanobacteria, convert light energy, typically from sunlight, into the chemical energy necessary to fuel their metabolism.
A vitamer ( / ˈvaɪtəmər /) of a particular vitamin is one of several related compounds that performs the functions of said vitamin and prevents the symptoms of deficiency of said vitamin. Early research identified vitamins by their ability to cure vitamin-specific deficiency diseases. For example, vitamin B 1 was first identified as a ...
Allithiamine. Allithiamine ( thiamine allyl disulfide or TAD) is a lipid -soluble form of vitamin B 1 which was discovered in garlic ( Allium sativum) in the 1950s along with its homolog prosultiamine. [1] They were both investigated for their ability to treat Wernicke–Korsakoff syndrome and beriberi better than thiamine.
Thiamine deficiency. Thiamine deficiency is a medical condition of low levels of thiamine (vitamin B 1 ). [ 1] A severe and chronic form is known as beriberi. [ 1][ 7] The name beriberi was possibly borrowed in the 18th century from the Sinhalese phrase බැරි බැරි (bæri bæri, “I cannot, I cannot”), owing to the weakness ...
Light-harvesting complex. A light-harvesting complex consists of a number of chromophores [ 1] which are complex subunit proteins that may be part of a larger super complex of a photosystem, the functional unit in photosynthesis. It is used by plants and photosynthetic bacteria to collect more of the incoming light than would be captured by the ...
Plant nutrition is the study of the chemical elements and compounds necessary for plant growth and reproduction, plant metabolism and their external supply. In its absence the plant is unable to complete a normal life cycle, or that the element is part of some essential plant constituent or metabolite. This is in accordance with Justus von ...