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

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

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

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

<p>Seeds (B)</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 (C)</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 (C)</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 (A)</p> Signup and view all the answers

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

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

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

<p>Upper intestinal tract (C)</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 (A)</p> Signup and view all the answers

What are the major endproducts of rumen carbohydrate digestion?

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

What is the primary source of carbohydrates in animal nutrition?

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

What is the main function of lignin in plants?

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

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

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

Which compound hinders the digestibility of cellulose in plants?

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

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