Lipids Flashcards
1
Q
Source of energy
A
higher proportion of hydrogen + oxygen atoms, when oxidised release twice the energy
2
Q
Act as insulators
A
fat is a slow conductor of heat + helps retain body heat (thermal insulator)+electrical insulator
E.G.myelin sheath, waxy cuticle
3
Q
Waterproofing
A
large non-polar molecules + insoluble in water
4
Q
Protection
A
fat is stored around delicate organs+
acts as a shock absorber
5
Q
Saturated triglycerides
A
No C=C bonds
•High melting point
•solid at room temp
E.G.butter
6
Q
Unsaturated triglycerides
A
One or more C=C bonds
• low melting point
• liquid at room temp
E.G. Oil
