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  2. Lipid - Wikipedia

    en.wikipedia.org/wiki/Lipid

    Biological lipids originate entirely or in part from two distinct types of biochemical subunits or "building-blocks": ketoacyl and isoprene groups. [3] Using this approach, lipids may be divided into eight categories: fatty acyls, glycerolipids, glycerophospholipids, sphingolipids, saccharolipids, and polyketides (derived from condensation of ...

  3. Membrane lipid - Wikipedia

    en.wikipedia.org/wiki/Membrane_lipid

    Membrane lipids are a group of compounds (structurally similar to fats and oils) which form the lipid bilayer of the cell membrane. The three major classes of membrane lipids are phospholipids, glycolipids, and cholesterol. Lipids are amphiphilic: they have one end that is soluble in water ('polar') and an ending that is soluble in fat ...

  4. Category:Lipids - Wikipedia

    en.wikipedia.org/wiki/Category:Lipids

    Lipids are a class of relatively water-insoluble organic molecules, which are the "basic" components of biological membranes. There are three forms of lipids: phospholipids , steroids , and triglycerides .

  5. Fatty acid - Wikipedia

    en.wikipedia.org/wiki/Fatty_acid

    Fatty acids are a major component of the lipids (up to 70% by weight) in some species such as microalgae [2] but in some other organisms are not found in their standalone form, but instead exist as three main classes of esters: triglycerides, phospholipids, and cholesteryl esters.

  6. Lipid metabolism - Wikipedia

    en.wikipedia.org/wiki/Lipid_metabolism

    There are two major classes of membrane lipids: glycerophospholipids and sphingolipids. Although many different membrane lipids are synthesized in our body, pathways share the same pattern. The first step is synthesizing the backbone (sphingosine or glycerol), the second step is the addition of fatty acids to the backbone to make phosphatidic acid.

  7. Phospholipid - Wikipedia

    en.wikipedia.org/wiki/Phospholipid

    Phosphatidylcholine is the major component of lecithin. It is also a source for choline in the synthesis of acetylcholine in cholinergic neurons. Phospholipids [ 1 ] are a class of lipids whose molecule has a hydrophilic "head" containing a phosphate group and two hydrophobic "tails" derived from fatty acids , joined by an alcohol residue ...

  8. Biochemistry - Wikipedia

    en.wikipedia.org/wiki/Biochemistry

    In triglycerides, the main group of bulk lipids, there is one molecule of glycerol and three fatty acids. Fatty acids are considered the monomer in that case, and may be saturated (no double bonds in the carbon chain) or unsaturated (one or more double bonds in the carbon chain).

  9. Glycerophospholipid - Wikipedia

    en.wikipedia.org/wiki/Glycerophospholipid

    There are three major classes namely; 1-alkyl-2-acyl glycerophospholipid, 1,2-diacyl glycerophospholipid and plasmalogen. The main function of these classes of glycerophospholipids in the neural membranes is to provide stability, permeability and fluidity through specific alterations in their compositions. [13]