Unsaturated Fatty Acids Part 1: Nomenclature and Structure

The video tutorial explains the differences between saturated and unsaturated fatty acids, focusing on stearic, oleic, linoleic, and linolenic acids. It covers the drawing and naming conventions for these acids, emphasizing the importance of carbon-carbon double bonds and their positions. The tutorial also discusses polyunsaturated fatty acids and the rule of increasing double bond positions by three.

What is the characteristic feature of a saturated fatty acid like stearic acid?

• Presence of a triple bond

• Presence of multiple double bonds

• Absence of double bonds

• Presence of a single double bond

How is the position of a double bond in an unsaturated fatty acid like oleic acid indicated?

• Using a Greek letter gamma

• Using a Greek letter delta

• Using a Greek letter beta

• Using a Greek letter alpha

What is the abbreviated form of linoleic acid, which has two double bonds?

• 18:3

• 18:0

• 18:2

• 18:1

What is the term used for fatty acids with more than one double bond?

• Polyunsaturated

• Monounsaturated

• Trans fat

• Saturated

In polyunsaturated fatty acids, how does the position of double bonds typically change?

• Increases by two

• Increases by three

• Increases by five

• Increases by four

Which of the following is a characteristic of linolenic acid?

• It has three double bonds

• It has two double bonds

• It has one double bond

• It has four double bonds

What is the starting position of double bonds in arachidonic acid?

• Position 12

• Position 5

• Position 15

• Position 9