A trace element is a chemical element of a minute quantity, a trace amount, especially used in referring to a micronutrient,[1][2] but is also used to refer to minor elements in the composition of a rock, or other chemical substance.
In nutrition, trace elements are classified into two groups: essential trace elements, and non-essential trace elements. Essential trace elements are needed for many physiological and biochemical processes in both plants and animals. Not only do trace elements play a role in biological processes but they also serve as catalysts to engage in redox – oxidation and reduction mechanisms.[3] Trace elements of some heavy metals have a biological role as essential micronutrients.
The two types of trace element in biochemistry are classed as essential or non-essential.
Essential trace elementsedit
An essential trace element is a dietary element, a mineral that is only needed in minute quantities for the proper growth, development, and physiology of the organism.[4] The essential trace elements are those that are required to perform vital metabolic activities in organisms.[5] Essential trace elements in human nutrition, and other animals include iron (Fe) (hemoglobin), copper (Cu) (respiratory pigments), cobalt (Co) (Vitamin B12), iodine, manganese (Mn) and zinc (Zn) (enzymes).[5][6] Although they are essential, they become toxic at high concentrations.[7]
Non-essential trace elementsedit
Non-essential trace elements include silver (Ag), cadmium (Cd), mercury (Hg), and lead (Pb). They have no known biological function in mammals, with toxic effects even at low concentration.[5]
The structural components of cells and tissues that are required in the diet in gram quantities daily are known as bulk elements.[8]
^Bhattacharya, Preeti Tomar; Misra, Satya Ranjan; Hussain, Mohsina (2016-06-28). "Nutritional Aspects of Essential Trace Elements in Oral Health and Disease: An Extensive Review". Scientifica. 2016: 1–12. doi:10.1155/2016/5464373. PMC4940574. PMID 27433374.
^"Definition of Trace element". www.merriam-webster.com. Retrieved 30 June 2023.
^ abcSoto-Jiménez, Martin (December 2011). "Trace element trophic transfer in aquatic food webs". Hidrobiológica. 21 (3): 239–248. ISSN 0188-8897. Retrieved 5 November 2018.
^Shier, Butler, Lewis, David, Jackie, Ricki (2016). Hole's Human Anatomy Fourteenth Edition. New York: McGraw Hill Education. p. 59. ISBN978-0-07-802429-0.{{cite book}}: CS1 maint: multiple names: authors list (link)
^Jomova K, Makova M, Alomar SY, Alwasel SH, Nepovimova E, Kuca K, Rhodes CJ, Valko M (November 2022). "Essential metals in health and disease". Chem Biol Interact. 367: 110173. doi:10.1016/j.cbi.2022.110173. PMID 36152810.
^"Essential Elements for Life". saylordotorg.github.io. Retrieved 2023-02-13.
February 16, 2024
trace, element, trace, element, chemical, element, minute, quantity, trace, amount, especially, used, referring, micronutrient, also, used, refer, minor, elements, composition, rock, other, chemical, substance, nutrition, trace, elements, classified, into, gro. A trace element is a chemical element of a minute quantity a trace amount especially used in referring to a micronutrient 1 2 but is also used to refer to minor elements in the composition of a rock or other chemical substance In nutrition trace elements are classified into two groups essential trace elements and non essential trace elements Essential trace elements are needed for many physiological and biochemical processes in both plants and animals Not only do trace elements play a role in biological processes but they also serve as catalysts to engage in redox oxidation and reduction mechanisms 3 Trace elements of some heavy metals have a biological role as essential micronutrients Types editMain article Mineral nutrient The two types of trace element in biochemistry are classed as essential or non essential Essential trace elements edit An essential trace element is a dietary element a mineral that is only needed in minute quantities for the proper growth development and physiology of the organism 4 The essential trace elements are those that are required to perform vital metabolic activities in organisms 5 Essential trace elements in human nutrition and other animals include iron Fe hemoglobin copper Cu respiratory pigments cobalt Co Vitamin B12 iodine manganese Mn and zinc Zn enzymes 5 6 Although they are essential they become toxic at high concentrations 7 Non essential trace elements edit Non essential trace elements include silver Ag cadmium Cd mercury Hg and lead Pb They have no known biological function in mammals with toxic effects even at low concentration 5 The structural components of cells and tissues that are required in the diet in gram quantities daily are known as bulk elements 8 See also editAntinutrient Bowen s Kale Geotraces List of micronutrientsReferences edit Bhattacharya Preeti Tomar Misra Satya Ranjan Hussain Mohsina 2016 06 28 Nutritional Aspects of Essential Trace Elements in Oral Health and Disease An Extensive Review Scientifica 2016 1 12 doi 10 1155 2016 5464373 PMC 4940574 PMID 27433374 Definition of Trace element www merriam webster com Retrieved 30 June 2023 What are Trace Elements PDF Bowen Humphrey John Moule 1966 Trace elements in biochemistry Academic Press ISBN 9780121209506 a b c Soto Jimenez Martin December 2011 Trace element trophic transfer in aquatic food webs Hidrobiologica 21 3 239 248 ISSN 0188 8897 Retrieved 5 November 2018 Shier Butler Lewis David Jackie Ricki 2016 Hole s Human Anatomy Fourteenth Edition New York McGraw Hill Education p 59 ISBN 978 0 07 802429 0 a href Template Cite book html title Template Cite book cite book a CS1 maint multiple names authors list link Jomova K Makova M Alomar SY Alwasel SH Nepovimova E Kuca K Rhodes CJ Valko M November 2022 Essential metals in health and disease Chem Biol Interact 367 110173 doi 10 1016 j cbi 2022 110173 PMID 36152810 Essential Elements for Life saylordotorg github io Retrieved 2023 02 13 Retrieved from https en wikipedia org w index php title Trace element amp oldid 1187749419, wikipedia, wiki, book, books, library,
