In most mammalian tissues, ubiquinone (also called coenzyme Q) has 10 isoprene units.

Dolichols of animals have 17 to 21 isoprene units (85 to 105 carbon atoms), bacterial dolichols have 11, and those of plants and fungi have 14 to 24.

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In triacylglycerols, glycerophospholipids, galactolipids, and sulfolipids, the alkyl groups are fatty acids in ester linkage. 

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Beeswax is Triacontanoylpalmitate, is an ester of palmitic acid with the alcohol triacontanol.

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#Section 2: General Biology

The presence of one or more fatty acids with cis double bonds interferes with this tight packing and results in less stable aggregates.

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Saturation = extent of packing

Fully saturated fatty acids in the extended form pack into nearly crystalline arrays, stabilized by many hydrophobic interactions.

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#Section 2: General Biology

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#Section 2: General Biology