Nutrient Synthesis and Dietary Requirements Quiz
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Questions and Answers

What is the primary symptom associated with acute gastrointestinal upset in cases of copper toxicity?

  • Abdominal pain
  • Diarrhea
  • Constipation
  • Vomiting (correct)

    • Which of the following is a potential effect of long-term copper toxicity on the neurological system?

  • Improved cognitive function
  • Increased motor coordination
  • Deterioration of neurological processes (correct)
  • Enhanced sensory perception

    • What is a potential effect of copper toxicity on the musculoskeletal system?

  • Decreased bone density
  • Weakened muscle strength
  • Increased joint flexibility
  • Calcified muscle insertions and exotosis (correct)

    • Which of the following is a recognized symptom of Wilson's disease, a condition associated with copper toxicity?

    <p>Copper deposits in the cornea</p> Signup and view all the answers

    What is a potential effect of severe copper toxicity from contamination?

    <p>Severe psychiatric and neurologic disorders</p> Signup and view all the answers

    What is the main purpose of enzymes in the body?

    <p>To speed up chemical reactions without changing themselves</p> Signup and view all the answers

    Which of the following is NOT a characteristic of hormones?

    <p>All hormones are protein in nature</p> Signup and view all the answers

    What is the role of cofactors in enzyme systems?

    <p>They are sometimes called activators or coenzymes</p> Signup and view all the answers

    What is the key principle highlighted by the term 'individualization' in diet planning?

    <p>Variety of food choices</p> Signup and view all the answers

    Which of the following is NOT a characteristic of natural foods?

    <p>They contain all the necessary nutrients</p> Signup and view all the answers

    What is the relationship between enzymes and metabolic reactions in the body?

    <p>Biocatalysts like enzymes are responsible for most chemical reactions in the body</p> Signup and view all the answers

    What is a common sign of protein-calorie deficiency?

    <p>Muscle wasting and weakness</p> Signup and view all the answers

    Which vitamin deficiency is most likely to cause corkscrew hairs and coiled hair?

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

    Which nutrient deficiency is associated with easy bruising and purpura?

    <p>Vitamin C deficiency</p> Signup and view all the answers

    What is a common sign of riboflavin (vitamin B2) deficiency?

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

    Which nutrient deficiency is associated with impaired visual recovery after glare?

    <p>Vitamin A deficiency</p> Signup and view all the answers

    What is a common sign of zinc deficiency?

    <p>Scrotal dermatosis</p> Signup and view all the answers

    Which of the following is considered a macronutrient?

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

    Why is choline considered an essential nutrient?

    <p>It cannot be synthesized by the body in adequate amounts</p> Signup and view all the answers

    Which statement about conditionally essential nutrients is true?

    <p>They are required in the diet only during stress or illness</p> Signup and view all the answers

    Which factor does NOT affect the amount of nutrients an individual needs?

    <p>Socioeconomic status</p> Signup and view all the answers

    What is the criterion for classifying a nutrient as a macronutrient?

    <p>Its concentration in the body is above 50 parts per million</p> Signup and view all the answers

    Which of the following statements about nutrients is false?

    <p>Micronutrients include vitamins and major minerals</p> Signup and view all the answers

    Which of the following conditions may lead to nutritional deficiency if nutrient intake is not increased?

    <p>All of the above</p> Signup and view all the answers

    What does the text suggest about the lifestyle of a heavy smoker?

    <p>They need more vitamin C than a non-smoker</p> Signup and view all the answers

    Which of the following factors is NOT mentioned in the text as affecting nutrient needs?

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

    Which nutrient needs may be increased for an extremely active athlete?

    <p>Both A and B</p> Signup and view all the answers

    What is the term used in the text to refer to the study of how genetics affects nutrient needs?

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

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