CH 3: Organic Compounds
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Questions and Answers

What are the primary functions of carbohydrates?

  • Energy storage, structural roles, and energy provision through photosynthesis.
  • Energy storage, structural roles, and energy provision through fermentation.
  • Energy storage, structural roles, and energy provision through decomposition.
  • Energy storage, structural roles, and energy provision through cellular respiration. (correct)

    • Which of the following is a type of disaccharide?

  • Sucrose (correct)
  • Starch
  • Cellulose
  • Glucose

    • What is a characteristic of unsaturated fats?

  • They are typically solid at room temperature.
  • They are found in animal products.
  • They are liquid at room temperature. (correct)
  • They are found in bacteria.

    • Which of the following is not a function of lipids?

    <p>Protein synthesis (C)</p> Signup and view all the answers

    What is a primary component of cell walls in plants?

    <p>Cellulose (D)</p> Signup and view all the answers

    Which of the following is not a type of carbohydrate?

    <p>Tetrasaccharides (A)</p> Signup and view all the answers

    What is a characteristic of saturated fats?

    <p>They are typically solid at room temperature. (C)</p> Signup and view all the answers

    Which organic compound is primarily responsible for providing structural support in living organisms?

    <p>Proteins (A)</p> Signup and view all the answers

    Which organic compound is involved in translating genetic information into proteins?

    <p>RNA (C)</p> Signup and view all the answers

    Which chemical test results in a blue-black color, indicating the presence of an organic compound?

    <p>Starch test with iodine (B)</p> Signup and view all the answers

    Which class of organic compounds includes deoxyribonucleic acid (DNA)?

    <p>Nucleic acids (B)</p> Signup and view all the answers

    Which reagent is used to detect the presence of proteins?

    <p>Biuret (D)</p> Signup and view all the answers

    Which organic compound plays a role in enzyme catalysis?

    <p>Proteins (A)</p> Signup and view all the answers

    Which organic compound can be identified through a color change from blue to green, yellow, orange, or red in Benedict's and Fehling's tests?

    <p>Reducing sugars (B)</p> Signup and view all the answers

    Which type of protein is involved in immune protection?

    <p>Globular proteins (D)</p> Signup and view all the answers

    Which organic compound is primarily responsible for genetic information storage?

    <p>Nucleic acids (A)</p> Signup and view all the answers

    Which of the following is NOT a function of proteins?

    <p>Energy storage (D)</p> Signup and view all the answers

    Which chemical test is used to identify the presence of starch?

    <p>Iodine test (A)</p> Signup and view all the answers

    Which organic compound is involved in translating genetic information into proteins?

    <p>RNA (B)</p> Signup and view all the answers

    Which of the following is NOT a test used to identify proteins?

    <p>Benedict's test (A)</p> Signup and view all the answers

    Which organic compound can be fibrous or globular?

    <p>Proteins (C)</p> Signup and view all the answers

    Which of the following is NOT a function of nucleic acids?

    <p>Structural support (D)</p> Signup and view all the answers

    Which organic compound is primarily responsible for providing energy to living organisms?

    <p>Carbohydrates (D)</p> Signup and view all the answers

    What is the primary function of polysaccharides in living organisms?

    <p>Structural roles (B)</p> Signup and view all the answers

    Which of the following lipids is typically found in plants and is liquid at room temperature?

    <p>Unsaturated fats (B)</p> Signup and view all the answers

    Which of the following is a simple sugar classified as a monosaccharide?

    <p>Glucose (A)</p> Signup and view all the answers

    What makes lipids insoluble in water but soluble in organic solvents?

    <p>Polarity of molecules (B)</p> Signup and view all the answers

    Which type of organic compounds primarily provide energy storage in plants and animals?

    <p>Carbohydrates (C)</p> Signup and view all the answers

    What is the main difference between saturated and unsaturated fats?

    <p>Presence of double bonds (A)</p> Signup and view all the answers

    What is the primary function of nucleic acids in living organisms?

    <p>Storing and processing genetic information (B)</p> Signup and view all the answers

    Which type of organic compound is involved in enzyme catalysis?

    <p>Proteins (D)</p> Signup and view all the answers

    Which chemical test is typically used to identify the presence of lipids?

    <p>Ether test (C)</p> Signup and view all the answers

    What causes the blue-black color change in the starch test with iodine?

    <p>Presence of starch (B)</p> Signup and view all the answers

    Which organic compound is known for providing energy storage in living organisms?

    <p>Lipids (C)</p> Signup and view all the answers

    Which class of organic compounds plays a crucial role in translating genetic information into proteins?

    <p>Nucleic acids (C)</p> Signup and view all the answers

    What is the main difference between fibrous and globular proteins?

    <p>Fibrous proteins provide structural support, while globular proteins are involved in transport. (D)</p> Signup and view all the answers

    Which organic compound undergoes color changes in chemical tests for reducing sugars like Benedict's and Fehling's tests?

    <p>Carbohydrates (B)</p> Signup and view all the answers

    Which organic compound is a complex carbohydrate made up of multiple monosaccharide units and serves as a structural component in plant cell walls?

    <p>Cellulose (A)</p> Signup and view all the answers

    Which organic compound is a type of fat that is typically found in plants and is liquid at room temperature?

    <p>Unsaturated fats (B)</p> Signup and view all the answers

    Which organic compound is a simple sugar classified as a monosaccharide and is an essential component in cellular respiration?

    <p>Fructose (B)</p> Signup and view all the answers

    Which organic compound is a complex carbohydrate made up of multiple monosaccharide units and serves as a primary energy storage in animals?

    <p>Glycogen (C)</p> Signup and view all the answers

    Which organic compound is a type of lipid that is a structural component of cell membranes and is involved in the production of hormones?

    <p>Steroids (D)</p> Signup and view all the answers

    Which organic compound is a complex carbohydrate made up of multiple monosaccharide units and serves as a primary energy storage in plants?

    <p>Starch (A)</p> Signup and view all the answers

    Which organic compound is a type of lipid that is a structural component of cell membranes and provides insulation to the body?

    <p>Waxes (C)</p> Signup and view all the answers

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