What Did You Learn About Lipids?

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Beus
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Quizzes Created: 1 | Total Attempts: 294
| Attempts: 294
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  • 1/7 Questions

    Two types of lipids are...

    • Steroids and proteins
    • Fatty acids and nucleic acids
    • Fatty acids and steroids
    • Proteins and enzymes
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About This Quiz

After our presentation, you will have a quiz to take to see how much you learned. For some questions, more than one answer is available.

What Did You Learn About Lipids? - Quiz

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  • 2. 

    Lipids are soluble in...

    • Water

    • Coke

    • Ether

    • Chloroform

    Correct Answer(s)
    A. Ether
    A. Chloroform
    Explanation
    Lipids are not soluble in water because they are hydrophobic, meaning they repel water. However, they are soluble in organic solvents such as ether and chloroform. These solvents have nonpolar characteristics that allow them to dissolve lipids, which are also nonpolar in nature.

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  • 3. 

    Lipids...

    • Kill viruses

    • Store energy

    • Make you get tanner

    • Help prevent injury to vital organs

    Correct Answer(s)
    A. Store energy
    A. Help prevent injury to vital organs
    Explanation
    Lipids are a diverse group of molecules that serve various functions in the body. One of their primary roles is to store energy. Lipids, such as triglycerides, store energy in the form of fat, which can be utilized by the body when needed. Additionally, lipids also play a crucial role in protecting vital organs. They form a protective layer around organs, acting as a cushion and helping to prevent injury.

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  • 4. 

    When do lipids have a double bond?

    • When they're unsaturated

    • When they're saturated

    • When they're fatty acids

    • When they're steroids

    Correct Answer
    A. When they're saturated
    Explanation
    Lipids have a double bond when they are unsaturated, not when they are saturated. Unsaturated lipids have one or more double bonds in their fatty acid chains, which cause the molecules to have kinks and prevent them from packing tightly together. In contrast, saturated lipids have no double bonds and their fatty acid chains are fully saturated with hydrogen atoms, resulting in a straight, rigid structure. Therefore, lipids with double bonds are considered unsaturated, not saturated.

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  • 5. 

    What are oils made of?

    • Dehydration synthesis

    • Lipids

    • Fatty acids

    • Glycerol

    Correct Answer(s)
    A. Dehydration synthesis
    A. Fatty acids
    A. Glycerol
    Explanation
    Oils are made up of lipids, which are organic compounds that are insoluble in water. Lipids consist of fatty acids and glycerol. Dehydration synthesis refers to the chemical reaction that occurs when a molecule of water is removed to join two smaller molecules together, such as in the formation of a lipid molecule. Therefore, all three options - dehydration synthesis, fatty acids, and glycerol - are correct explanations for what oils are made of.

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  • 6. 

    What are lipids?

  • 7. 

    Lipids contain three elements. Briefly explain what they are.

Quiz Review Timeline (Updated): Mar 21, 2023 +

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  • Current Version
  • Mar 21, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Nov 01, 2009
    Quiz Created by
    Beus
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