Structures Of Proteins, Sugars And Lipids! Trivia Quiz

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Structures Of Proteins, Sugars And Lipids! Trivia Quiz - Quiz

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Questions and Answers
  • 1. 

     What is this?

    • A.

      Disaccharide

    • B.

      Amino acid

    • C.

      Polypeptide

    • D.

      Monosaccharide

    Correct Answer
    B. Amino acid
    Explanation
    An amino acid is a molecule that contains both an amino group and a carboxyl group. It is the building block of proteins and plays a crucial role in various biological processes. Disaccharides are carbohydrates composed of two monosaccharide units, while polypeptides are chains of amino acids linked together. Monosaccharides are the simplest form of carbohydrates, consisting of a single sugar molecule. Therefore, the correct answer is amino acid.

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  • 2. 

     What is this?

    • A.

      Dipeptide

    • B.

      Disaccharide

    • C.

      Triglyceride

    • D.

      Amino acid

    Correct Answer
    A. Dipeptide
    Explanation
    A dipeptide is a molecule composed of two amino acids joined together by a peptide bond. It is formed through a condensation reaction where the carboxyl group of one amino acid reacts with the amino group of another amino acid, resulting in the formation of a peptide bond and the release of a water molecule. Therefore, a dipeptide is a specific type of molecule that consists of two amino acids and is different from a disaccharide (composed of two sugar molecules), a triglyceride (composed of three fatty acid molecules and a glycerol molecule), and an amino acid (a single building block of proteins).

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  • 3. 

     What is this?

    • A.

      Polysaccharide

    • B.

      Polypeptide

    • C.

      Amino acid

    • D.

      Disaccharide

    Correct Answer
    D. Disaccharide
    Explanation
    A disaccharide is a type of carbohydrate composed of two sugar molecules bonded together. It is formed through a condensation reaction, where a molecule of water is removed. Examples of disaccharides include sucrose, lactose, and maltose. In contrast, a polysaccharide is a complex carbohydrate made up of many sugar molecules bonded together, while a polypeptide is a chain of amino acids and amino acids are the building blocks of proteins. Therefore, the correct answer is disaccharide.

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  • 4. 

     What is this?

    • A.

      Saturated fatty acid

    • B.

      Monosaccharide

    • C.

      Dipeptide

    • D.

      Polypeptide

    Correct Answer
    B. Monosaccharide
    Explanation
    A monosaccharide is a type of carbohydrate that consists of a single sugar molecule. It is the simplest form of sugar and cannot be broken down into smaller units. Examples of monosaccharides include glucose, fructose, and galactose. In the context of the given options, a monosaccharide is the only choice that represents a type of carbohydrate, while the other options refer to a type of fatty acid or a type of peptide.

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  • 5. 

    What is this?

    • A.

      Polypeptide

    • B.

      Amino acid

    • C.

      Peptide chain

    • D.

      Polysaccharide

    Correct Answer
    A. Polypeptide
    Explanation
    A polypeptide is a chain of amino acids bonded together by peptide bonds. It is a type of protein, and it is formed through the process of protein synthesis. Polypeptides play a crucial role in various biological processes, including enzyme catalysis, cell signaling, and structural support. Therefore, the answer "polypeptide" is the correct choice as it accurately describes the given term.

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  • 6. 

     What is this?

    • A.

      Disaccharide

    • B.

      Dipeptide

    • C.

      Polysaccharide

    • D.

      Monomer

    Correct Answer
    C. Polysaccharide
    Explanation
    A polysaccharide is a type of carbohydrate that consists of multiple sugar molecules bonded together. It is a complex molecule made up of repeating units of monosaccharides. Disaccharide, on the other hand, is a carbohydrate composed of two sugar molecules, while a dipeptide is a molecule formed by the linkage of two amino acids. Monomer refers to a molecule that can join together with other molecules to form a polymer. Therefore, the correct answer is polysaccharide, as it best fits the description of a complex carbohydrate made up of multiple sugar units.

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  • 7. 

     What is this?

    • A.

      Unsaturated fatty acid

    • B.

      Saturated fatty acid

    • C.

      Disaccharide

    • D.

      Ester bond

    Correct Answer
    B. Saturated fatty acid
    Explanation
    A saturated fatty acid is the correct answer because it is a type of fatty acid in which all carbon atoms are bonded to as many hydrogen atoms as possible, resulting in a molecule that is "saturated" with hydrogen. This type of fatty acid is typically solid at room temperature and is commonly found in animal fats and tropical oils.

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  • 8. 

     What is this?

    • A.

      Monosaccharide

    • B.

      Unsaturated fatty acid

    • C.

      Saturated fatty acid

    • D.

      Triglyceride

    Correct Answer
    D. Triglyceride
    Explanation
    A triglyceride is a type of lipid molecule composed of three fatty acids attached to a glycerol backbone. It is the main form of fat storage in the body and is found in adipose tissue. Triglycerides are an important energy source and are also involved in insulation and protection of organs. They are typically found in foods such as oils, butter, and animal fats.

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  • 9. 

     What is this?

    • A.

      Amino acid chain

    • B.

      Saturated fatty acid

    • C.

      Unsaturated fatty acid

    • D.

      Polysaccharide

    Correct Answer
    C. Unsaturated fatty acid
    Explanation
    An unsaturated fatty acid is the correct answer because it is a type of fatty acid that contains one or more double bonds in its carbon chain. This double bond causes a kink or bend in the fatty acid chain, preventing it from packing tightly together. As a result, unsaturated fatty acids are usually liquid at room temperature and are commonly found in plant-based oils. In contrast, saturated fatty acids have no double bonds and are solid at room temperature, while amino acid chains and polysaccharides are not related to the structure of fatty acids.

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  • Current Version
  • Mar 21, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Oct 28, 2011
    Quiz Created by
    Nuzzzzie
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