Chemistry of Lipids and Their Functions
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Questions and Answers

What is the common property shared by lipids?

  • Solubility in both water and nonpolar solvents
  • Insolubility in water and solubility in nonpolar solvents (correct)
  • Solubility in water
  • Insolubility in nonpolar solvents
  • What is the main nature of the structural components of biomembranes?

  • Steroids
  • Phospholipids (correct)
  • Saturated fats
  • Unsaturated fats
  • Which function do lipids primarily serve in the subcutaneous tissues and around certain organs?

  • Structural components of biomembranes
  • Thermal insulation (correct)
  • Supply of essential fatty acids
  • Storage form of energy
  • Where do combinations of lipid and protein (lipoproteins) serve as important cellular constituents?

    <p>In the mitochondria</p> Signup and view all the answers

    Which of the following diseases is associated with abnormal chemistry or metabolism of lipids?

    <p>Obesity</p> Signup and view all the answers

    What are the esters of fatty acids with glycerol known as?

    <p>Fats</p> Signup and view all the answers

    Which type of fatty acids contain no double bonds and are solid at room temperature?

    <p>Saturated fatty acids</p> Signup and view all the answers

    What is the general formula for saturated fatty acids?

    <p>$CnH2n+1COOH$</p> Signup and view all the answers

    Which type of fatty acids contain one double bond?

    <p>Monounsaturated fatty acids</p> Signup and view all the answers

    What are the lipid molecules derived from simple/compound lipids on hydrolysis known as?

    <p>Vitamins (A,D,E,K)</p> Signup and view all the answers

    Which of the following is NOT a function of lipids?

    <p>Supply the body with water-soluble vitamins</p> Signup and view all the answers

    Which statement about lipids is true?

    <p>They are not a preferable source of energy compared to carbohydrates</p> Signup and view all the answers

    What is the most common property shared by lipids?

    <p>Insolubility in water</p> Signup and view all the answers

    In which cellular constituents do combinations of lipid and protein (lipoproteins) occur?

    <p>Both in the cell membrane and in the mitochondria</p> Signup and view all the answers

    Which disease is NOT associated with abnormal chemistry or metabolism of lipids?

    <p>Hypertension</p> Signup and view all the answers

    Which type of fatty acids may be envisaged as based on acetic acid (CH3 —COOH) as the first member of the series?

    <p>Saturated fatty acids</p> Signup and view all the answers

    What is the molecular formula for saturated fatty acids?

    <p>CnH2n+1COOH</p> Signup and view all the answers

    Which type of fatty acids contain one double bond?

    <p>Monounsaturated fatty acids</p> Signup and view all the answers

    What are the esters of fatty acids with glycerol known as?

    <p>Fats</p> Signup and view all the answers

    Which type of fatty acids are solid at room temperature except if they are short chained?

    <p>Saturated fatty acids</p> Signup and view all the answers

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