Test Fats

Properties of a fat result from ____.

• a. Chain length
• b. Degree of saturation
• c. Both of the above
• d. None of the above

Below is a molecular model of a lipid. Which of the following statements is true, based on the structure of the molecule?

• A) The triglyceride is likely to be liquid at room temperature
• B) The triglyceride is likely to be solid at room temperature
• C) The triglyceride most likely came from a plant-based source
• A and C

The more _____ a fatty acid contains, the higher its melting point.

• a. Sulfur
• b. Oxygen
• c. Nitrogen
• d. carbon

Which of the following foods MOST likely owes its qualities to fats?

• a. a light, moist chocolate cake
• b. a satisfying serving of pasta with zesty tomato sauce
• c. a crisp, crunchy carrot
• d. a hearty bowl of bean soup

Which of the following statements is NOT true of fats in frying?

• a. Frying and oxidation have a similar effect on fats.
• b. Fat’s high carbon content makes it an efficient conductor of heat.
• c. A fat gives best results when it reaches its smoke point
• d. Due to its molecular structure, burning fat is not extinguished by water.

Rancidity is ______.

• a. caused by oxidation of fats
• b. a form of food spoilage
• c. more likely in unsaturated fats
• d. All of these are correct

Butter is an example of a:

• Saturated fat
• Unsaturated fat

Which would contain more, if any, double bonds in it's molecular makeup?

• Water
• Butter
• Vegetable oil

How can one visually tell if a fat (at room temperature) is saturated or not?

• The color of a saturated fat is slightly darker in nature
• The taste of an unsaturated fat is more pronounced than a saturated fat
• Saturated fats are solid at room temperature, whereas unsaturated fats are liquid at room temperature.
• Unsaturated fats have a pronounced, garlicky scent to them when heated up

When a fat is saturated, what does it say about it's hydrogen content?

• It has all the hydrogen it can chemically bond to
• It has double bonds in its makeup
• It can take more hydrogen
• It says nothing about its hydrogen content