Oil molecule

Oil molecule

Triglycerides containing unsaturated fatty acids are liquid at room temperature.



oil molecule, lipid, neutral fat, triglyceride, vegetable oil, unsaturated compound, unsaturated fatty acid, glycerol, ester bond, oleic acid, stearic acid, palmitic acid, chemistry, organic chemistry

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Oil molecule C₅₇H₁₀₇O₆


Molar mass: 887.45 g/mol


Oils are triglycerides, the glycerol in their molecules is esterified by three fatty acid molecules, at least one of which is unsaturated. (The oil molecule shown here consists of a saturated stearic acid molecule and two unsaturated oleic acid molecules.) This mixture of fatty acid and glyceryl ester is a liquid; due to the unsaturated fatty acids, it is insoluble in water, but it dissolves well in ether and chloroform.

Occurrence and production

Oils are extracted from the seeds of oily plants.


Oils are used in the production of food, paint, leather care products, cosmetic products, fatty alcohols and fatty acids.



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Fat molecule

Three saturated fatty acid molecules linked to a glycerol molecule.

Oleic acid (cis-octadec-9-enoic acid) (C₁₇H₃₃COOH)

An unsaturated monocarboxylic acid. The molecule contains double bond in cis orientation.

Palmitic acid (hexadecanoic acid) (C₁₅H₃₁COOH)

A white, waxy substance, a carboxylic acid of high carbon number.

Stearic acid (octadecanoic acid) (C₁₇H₃₅COOH)

Solid, white substance, a constituent of vegetable oils and animal fats.

Glycerol (propane-1,2,3-triol) (C₃H₈O₃)

A triol that is often used as an ingredient of creams and ointments.


Fatty acid molecules consist of a polar head and a non-polar tail, therefore they are suitable for removing fat stains.

Transport processes

This animation explains active and passive transport processes occurring through cell membranes

Animal and plant cells, cellular organelles

Eukaryotic cells contain a number of organelles.

Bacteria (spheres, rods, spirals)

Bacteria occur in a wide range of shapes, including spheres, rods and spirals.

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