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Flashcards in Polyunsaturated fatty acids Deck (8)
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1

Describe the carbons of a polyunsaturated fatty acid

All of the carbons do not have their full quota of hydrogens

2

How many double bonds are present between the carbons of a polyunsaturated fatty acid?

There is more than one double bond present between the carbons

3

What form do polyunsaturated fatty acids take at room temperature?

They are soft or liquid at room temperature

4

Where do polyunsaturated fatty acids originate from?

Plant or marine sources

5

What effect do polyunsaturated fatty acids have on health?

They do not contribute to the build up of cholesterol in the arteries

6

Do polyunsaturated fatty acids have a high or low melting point?

Low melting point

7

Give three examples of polyunsaturated fatty acids, their sources and the amount of double bonds they have between their carbons

Linoleic acid in vegetable oil (2 double bonds)

Linolenic acid in vegetable oil and seeds (3 double bonds)

Arachidonic acid in oily fish (4 double bonds)

8

Give a structure of a polyunsaturated fatty acid

.......O H H H H
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HO-C-C-C=C-C-C=C-C-H
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H H H H H H H