Quiz on Lipids and Fatty Acids 1

What is the structure of the omega (ω) end of a fatty acid?

• A carboxylic acid group

• A hydroxyl group

• A methyl group (CH3)

• An amino group

What is the role of the carboxylic acid group in fatty acids?

• Provides energy

• Acts as a signaling molecule

• Serves as the attachment point to the glycerol backbone

• Enhances flavor

What is a characteristic of a saturated fatty acid?

• Contains double bonds between carbon atoms

• Loaded with all its hydrogen atoms

• Generally liquid at room temperature

• Have a lower melting point

At what temperature are saturated fatty acids generally solid?

• High temperature

• Room temperature

• Low temperature

• Boiling temperature

What is the main structural difference between monounsaturated and polyunsaturated fatty acids?

• Number of carbon atoms

• Number of double bonds

• Presence of oxygen atoms

• Type of hydrogen atoms

Which of the following is true about unsaturated fatty acids?

• They are always solid at room temperature.

• They contain more hydrogen atoms than saturated fats.

• They have at least one double bond between carbon atoms.

• They have a higher melting point than saturated fats.

What is the purpose of complete hydrogenation?

• To add flavor to the food.

• To remove all double bonds.

• To increase the food's color.

• To add vitamins to the food.

What is the purpose of partial hydrogenation?

• To add sugar to the food.

• To extend shelf life and improve texture.

• To make the food spicy.

• To increase the food's weight.

Which of the following is a non-animal source of saturated fat?

• Beef fat

• Coconut oil

• Chicken fat

• Fish oil

Which of the following is NOT a source of monounsaturated fats?

• Avocado

• Peanut oil

• Butter

• Olive oil