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Hifumi's Study Notes📕Cegep 1BiologyFat

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

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