Question

11. What is an omega-3 fatty acid?

Answer 1

Let's answer this question one by one

11.

The omega 3 fatty acids are a type of polyunsaturated fatty acids.

These fatty acids gets their name omega 3 because of their one property

In this type of fatty acids the double bond in 3 carbons away from the CH₃ group at the end of the structure

Here are some example

CHA COOH ALA: 0-Linolenic acid C18:3 n-3 CH C OOH EPA: Elcosapentanoic acid C20:5 n-3 -COOH DHA: Docosahexanoic acid C22:6 n-3

Now

Question 1

Examples of lipid molecules

Cholesterol

Steroids

Phospolipids

Wax

Etc

Structural characteristics

Lipids are also made up of carbon hydrogen and oxygen only like the most of the organic compounds

It has long hydrocarbon chain and this long hydrocarbon chain is attached to a molecule like glycerol the long hydrocarbon chain in hydrophobic in nature

I hope this helps. If you have any query or want more detailed explanation, feel free to ask in the comments section below.