Quarter 2 Biological Molecules Quiz
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Questions and Answers

Which carbohydrate is the most abundant organic molecule on earth?

  • Starch
  • Chitin
  • Maltose
  • Cellulose (correct)
  • What is the principal component of exoskeletons of animals like mollusks and crustaceans?

  • Chitin (correct)
  • Starch
  • Glycogen
  • Maltose
  • Which organic compound is the primary component of spider's silk?

  • Proteins (correct)
  • Carbohydrates
  • Nucleic acids
  • Lipids
  • What enzyme changes starch into sugar?

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

    What is the term for glucose present in urine?

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

    Which monosaccharide is considered the sweetest, being twice as sweet as glucose?

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

    What genetic metabolic disorder affects how the body processes galactose?

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

    Which disaccharide is commonly known as table sugar?

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

    What is formed by combining glucose and galactose?

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

    What is usually referred to as animal starch and stored in the liver and muscle?

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

    Which monosaccharide serves as a marker to identify blood types?

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

    What type of polysaccharide provides support to cell walls of plants and other organisms?

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

    What is the primary function of carbohydrates?

    <p>To store and supply energy</p> Signup and view all the answers

    Which storage polysaccharide is derived from potatoes, wheat, bread, and pasta?

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

    What is the main function of enzymes in biological systems?

    <p>To speed up chemical reactions</p> Signup and view all the answers

    Which type of organic compound serves as a key component of cellular membranes?

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

    Which macromolecule is composed of amino acid subunits?

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

    From which Greek words does the term 'Monosaccharide' originate?

    <p>'Mono' meaning single and 'sugar'</p> Signup and view all the answers

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