Chemical Composition of Animal and Plant Bodies Quiz
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Questions and Answers

Which of the following affects the chemical composition of plants?

  • Irrigation (correct)
  • Clinical nutrition
  • Nucleic acids
  • Animal body composition
  • What serves as both structural and reserve material in plants' dry matter?

  • Proteins
  • Nucleic acids
  • Carbohydrates (correct)
  • Lipids
  • What is the principal constituent of dry matter in plants?

  • Carbohydrates (correct)
  • Proteins
  • Organic acids
  • Lipids
  • Which of the following is a major content in living plants that decreases with maturity?

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

    In seeds, carbohydrates occur principally as which of the following?

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

    Which part of the plant generally has the highest percentage of lipids?

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

    Which element is generally associated with the vegetative portion of the plant and is richer in leaves than stems?

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

    Which of the following plant by-products arises from the residue of extraction of oil from oil-bearing seeds?

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

    Which compound is much higher in leaves than in stems and move from vegetative parts to seeds as the plant matures?

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

    In which form are the principal store of energy found in most oil-bearing seeds?

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

    Where does the digestion and absorption of starch occur in monogastric animals?

    <p>Upper intestinal tract</p> Signup and view all the answers

    Which of the following is the major carbohydrate-digesting enzyme secreted with the pancreatic juice and salivary glands?

    <p>α-amylase</p> Signup and view all the answers

    What are the major endproducts of rumen carbohydrate digestion?

    <p>Volatile fatty acids, carbon dioxide, and methane</p> Signup and view all the answers

    What is the predominant acid in the rumen with roughage diets that are high in cellulose?

    <p>Acetic acid</p> Signup and view all the answers

    In which part of the animal's body is the heat produced from the formation of volatile fatty acids useful for warming during cold weather?

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

    What is the primary source of carbohydrates in animal nutrition?

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

    What is the main function of lignin in plants?

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

    What process is responsible for the synthesis of carbohydrates in plant leaves?

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

    Which compound hinders the digestibility of cellulose in plants?

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

    What is the end product of the digestion of carbohydrates by enzymes secreted by monogastric animals?

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

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