Fat

Tags

Cegep1

Biology

Word count

106 words

Reading time

1 minute

Subclass of lipid
A.k.a. triglyceride or triacylglycerol

Formed by dehydration

Functions:

Storage of energy
- Twice as much energy per gram as polysaccharides
Protection of internal organs
Heat isolation

Structure

Composed of:

Glycerol
Three fatty acids joined to glycerol by ester linkage

Types

Saturated

No $C = C$ double bond
=> Straight hydrocarbon backbone
=> Compact
=> Solid at room temperature

Max cap on $H$ atoms in the molecule

From animal sources

Unsaturated

At least one $C = C$ double bond
=> Bent hydrocarbon backbone
=> Less compact
=> Liquid at room temperature

From plants and fish

Contributors

Changelog

Last edited 7 days ago

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