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Difference between revisions of "Lipid"

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''noun, plural: lipids''
 
''noun, plural: lipids''
  
A fatty or waxy [[organic]] [[compound]] that is readily soluble in [[nonpolar]] [[solvent]] (e.g. [[ether]]) but not in [[polar]] [[solvent]] (e.g [[water]]). Its major biological functions involve [[energy]] storage, structural component of [[cell membrane]], and [[cell signaling]].
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A fatty or waxy [[organic]] [[compound]] that is readily soluble in [[nonpolar]] [[solvent]] (e.g. [[ether]]) but not in [[polar]] [[solvent]] (e.g [[water]]), and whose major biological functions involve [[energy]] storage, structural component of [[cell membrane]], and [[cell signaling]]
  
  
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'''Supplement'''
 
'''Supplement'''
  
Examples of lipids are [[waxes]], [[oils]], [[sterols]], [[cholesterol]], [[fat-soluble vitamins]], monoglycerides, diglycerides, [[triglyceride]]s ([[fats]]), and [[phospholipid]]s.
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A lipid is a fatty organic compound that is insoluble in polar solvents (e.g. [[water]]) but soluble in nonpolar solvents (e.g. [[ether]]). Its major functions are for energy storage, as a structural component of the [[cell membrane]], and for [[cell signaling]]. It is usually made up of [[glycerol]] or [[fatty acid]] units, with or without other [[molecule]]s. Many lipids are [[amphiphilic]], i.e. they have both hydrophobic and hydrophilic components.  
  
Fatty acids (including fats) are a subgroup of lipids, hence, it will be inaccurate to consider the terms synonymous.  
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Lipids are one of the four major groups of [[biomolecule]]s (the others, [[nucleic acid]]s, [[protein]]s, and [[carbohydrate]]s). Examples of lipids are [[waxes]], [[oils]], [[sterols]], [[cholesterol]], [[fat-soluble vitamins]], monoglycerides, diglycerides, [[triglyceride]]s ([[fats]]), and [[phospholipid]]s.
  
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[[Fatty acid]]s (including fats) are a subgroup of lipids, hence, it will be inaccurate to consider the terms synonymous.
  
''Word origin:'' French ''lipide'' » Greek ''lipos'', fat.
 
  
''Related forms:'' lipidic (''adjective'').
 
<br>''Related terms:'' [[glycolipids]], [[lipid a]], [[lipid bilayer]], [[lipid granulomatosis]], [[lipid peroxidation]], [[lipid pneumonia]], [[lipid profile]], [[phospholipids]], [[sphingolipids]]
 
  
''Compare:'' [[fatty acid]].
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''Word origin:'' French ''lipide'' » Greek ''lipos'' ("fat")
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''See also:''
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* [[biomolecule]]
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* [[glycerol]]
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* [[fatty acid]]
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''Related term(s):''
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* [[Annular lipid]]
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* [[Lipid a 4-phosphatase]]
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* [[Lipid a disaccharide synthase]]
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* [[Lipid a]]
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* [[Lipid bilayer]]
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* [[Lipid granulomatosis]]
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* [[Lipid peroxidation]]
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* [[Lipid peroxides]]
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* [[Lipid pneumonia]]
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* [[Lipid profile]]
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* [[Neutral lipid storage disease]]
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''Related form(s):''
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* '' lipidic (''adjective'')
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* [[glycolipids]]
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* [[phospholipids]],
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* [[sphingolipids]]

Revision as of 08:36, 24 June 2018

Definition

noun, plural: lipids

A fatty or waxy organic compound that is readily soluble in nonpolar solvent (e.g. ether) but not in polar solvent (e.g water), and whose major biological functions involve energy storage, structural component of cell membrane, and cell signaling


Supplement

A lipid is a fatty organic compound that is insoluble in polar solvents (e.g. water) but soluble in nonpolar solvents (e.g. ether). Its major functions are for energy storage, as a structural component of the cell membrane, and for cell signaling. It is usually made up of glycerol or fatty acid units, with or without other molecules. Many lipids are amphiphilic, i.e. they have both hydrophobic and hydrophilic components.

Lipids are one of the four major groups of biomolecules (the others, nucleic acids, proteins, and carbohydrates). Examples of lipids are waxes, oils, sterols, cholesterol, fat-soluble vitamins, monoglycerides, diglycerides, triglycerides (fats), and phospholipids.

Fatty acids (including fats) are a subgroup of lipids, hence, it will be inaccurate to consider the terms synonymous.


Word origin: French lipide » Greek lipos ("fat")

See also:

Related term(s):

Related form(s):