9.1 Fatty Acids

Question 1

Fatty Acids are…

Answer 1

Long chained Carboxylic Acids.

Question 2

Main types of lipids

Answer 2

Phospholipids: Membrane, Organelles and Signalling.
Steroid Hormones: Sexual development, reproduction, mineral balance.
Cholesterol: Membrane fluidity and lipid formation.
Fatty Acids: Insulation and Cushion.
Eicosanoids: Signals that regulate Blood Pressure, pH, Pain, Inflammation and labor.

Question 3

Fatty Acid Notation

Answer 3

A:B^∆C
A = Number of Carbons (not including alpha carbon)
B = Number of double bonds
C = Carbon # closest to alpha carbon.
* ω is used to denote last double bond
Ex: Linoleic Acid 18:2^Δ9, 12

Question 4

Effects on Boiling Point

Answer 4

Longer chains increase, double bonds decrease drastically.

Question 5

Micelles

Answer 5

Are single layered spheres of fatty acids. They form naturally when at Critical Micellular Concentration.