Question 1

Which of the following best describes a saturated fatty acid?

Accepted Answer

A fatty acid with only single bonds between carbon atoms and fully saturated with hydrogen.

Question 2

A triglyceride composed of three long, saturated fatty acids is most likely to be:

Accepted Answer

Solid at room temperature.

Question 3

Which of the following fatty acids is most likely to be absorbed by our bodies most quickly?

Accepted Answer

A fatty acid with 8 carbon atoms.

Question 4

Which property of fatty acids is most important in determining their health effects?

Accepted Answer

The degree of hydrogen saturation and the chain length.

Question 5

Which of the following is a characteristic of trans fatty acids?

Accepted Answer

Hydrogen atoms are on opposite sides of the double bond, making the chain straighter.

Question 6

Linoleic acid is classified as which type of fatty acid?

Accepted Answer

Omega-6 fatty acid.

Question 7

Which of the following foods is NOT a good source of essential fatty acids?

Accepted Answer

Oranges.

Question 8

In linoleic acid, where would you expect to find a double bond?

Accepted Answer

6th closest carbon to the omega end of the chain.

Question 9

Which equation correctly represents the general structure of a fatty acid?

Accepted Answer

$$\mathrm{R{-}COOH}$$

Question 10

Which of the following statements about monounsaturated fatty acids is correct?

Accepted Answer

They contain one double bond in the hydrocarbon chain.

Question 11

A fatty acid with 8 carbon atoms is likely to be:

Accepted Answer

Digested & absorbed quicker than longer fatty acids.

Question 12

Which of the following is NOT a function of essential fatty acids in the body?

Accepted Answer

Synthesize all other fatty acids without dietary intake.

Question 13

Which of the following statements about cis and trans fatty acids is correct?

Accepted Answer

Trans fatty acids are associated with increased risk of cardiovascular disease.

Question 14

Which of the following is a polyunsaturated fatty acid?

Accepted Answer

A fatty acid with two or more double bonds.

Question 15

Which of the following factors does NOT determine the properties of fatty acids?

Accepted Answer

The number of carboxyl groups in the chain.

Question 16

Which of the following statements about omega-3 fatty acids is correct?

Accepted Answer

They have a double bond three carbons from the omega end.

Question 17

Which process is used to produce most trans fats found in processed foods?

Accepted Answer

Hydrogenation.

Question 18

Which of the following is a health effect associated with consuming trans fats?

Accepted Answer

Higher risk of cardiovascular disease.

Question 19

Which of the following is true regarding the absorption of fatty acids?

Accepted Answer

Short-chain fatty acids are absorbed more quickly than long-chain fatty acids.

Question 20

Which of the following equations represents the number of double bonds in a polyunsaturated fatty acid with $$n$$ carbon atoms and $$d$$ double bonds?

Accepted Answer

$$d \geq 2$$

Fatty Acids: Structure, Types, and Nutritional Significance

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