Human Nutrition Chapter Learning Objectives Quiz
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Questions and Answers

Which vitamins are not stored in appreciable amounts in the body, except for one exception?

  • Vitamin A
  • Vitamin K
  • Vitamin C (correct)
  • Vitamin D
  • Which cooking methods are considered best for preserving the fragile water-soluble vitamins?

  • Baking and roasting
  • Boiling and deep-frying
  • Steaming, stir-frying, and microwaving (correct)
  • Grilling and frying
  • What is the primary function of Thiamin in the body?

  • Antioxidant activity
  • Bone health support
  • Hormone regulation
  • Energy metabolism coenzyme (correct)
  • Which process has helped eliminate most overt deficiencies of B vitamins and vitamin C in the United States?

    <p>Food fortification</p> Signup and view all the answers

    What is the major role of B vitamins in the body?

    <p>Acting as coenzymes in energy metabolism</p> Signup and view all the answers

    Which vitamin is part of the coenzyme thiamin pyrophosphate (TPP) involved in glucose catabolism?

    <p>Thiamin (Vitamin B1)</p> Signup and view all the answers

    Which vitamin is essential for RNA and DNA synthesis, protein synthesis, and neurotransmitter regulation?

    <p>Thiamin (Vitamin B1)</p> Signup and view all the answers

    Which vitamin is fragile and requires specific care during cooking to prevent degradation?

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

    What is the Recommended Dietary Allowance (RDA) of Vitamin B6 for men aged 51 and older?

    <p>1.7 mg/day</p> Signup and view all the answers

    Which food source is NOT mentioned as a primary source of Vitamin B6?

    <p>Fresh vegetables</p> Signup and view all the answers

    What are symptoms of Vitamin B6 toxicity?

    <p>Upset stomach</p> Signup and view all the answers

    Which condition results from Folate deficiency?

    <p>Megaloblastic anemia</p> Signup and view all the answers

    What is the role of Folate in the body?

    <p>Essential for red blood cell synthesis</p> Signup and view all the answers

    What percentage of the U.S. population may have insufficient folate stores?

    <p>10%</p> Signup and view all the answers

    Which symptom is NOT associated with Vitamin B6 deficiency?

    <p>Vision problems</p> Signup and view all the answers

    How might a diet rich in folate potentially benefit health?

    <p>Reduced cancer risk</p> Signup and view all the answers

    What are the symptoms of vitamin B12 deficiency anemia?

    <p>Reopening of wounds and diarrhea</p> Signup and view all the answers

    Which vitamin is needed for collagen synthesis and enhancing the absorption of nonheme iron from plant foods?

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

    What can excessive intake of vitamin C lead to?

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

    Which of the following is a function of choline?

    <p>Helps metabolize homocysteine</p> Signup and view all the answers

    What are the major food sources of choline?

    <p>Milk, liver, egg yolk, and peanuts</p> Signup and view all the answers

    Which vitamin deficiency may result in GI distress and free radical damage?

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

    What autoimmune disorder leads to vitamin B12 deficiency anemia?

    <p>Pernicious anemia</p> Signup and view all the answers

    What does vitamin C help synthesize besides vital cell compounds?

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

    What are the symptoms of thiamin deficiency that include profound muscle weakness and nerve destruction?

    <p>Mental confusion and staggering</p> Signup and view all the answers

    Which syndrome is alcohol-induced and presents with mental confusion, staggering, and constant rapid eye movements?

    <p>Wernicke-Korsakoff Syndrome</p> Signup and view all the answers

    What are the symptoms of riboflavin deficiency that include glossitis, angular stomatitis, cheilosis, and seborrheic dermatitis?

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

    Which vitamin functions as a co-enzyme in energy metabolism, supporting oxidation-reduction reactions, the citric acid cycle (CAC), and beta-oxidation?

    <p>Vitamin B2</p> Signup and view all the answers

    What is the primary function of biotin in the body?

    <p>Amino acid synthesis</p> Signup and view all the answers

    Which of the following food sources is rich in biotin?

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

    How is biotin absorption affected by consuming raw egg whites?

    <p>Reduced absorption</p> Signup and view all the answers

    What is the Adequate Intake (AI) level of biotin for adult men and women?

    <p>30 μg/day</p> Signup and view all the answers

    What is the primary active coenzyme form of Vitamin B6?

    <p>Pyridoxal phosphate (PLP)</p> Signup and view all the answers

    Which of the following is NOT supported by Vitamin B6 as a coenzyme?

    <p>Fatty acid synthesis</p> Signup and view all the answers

    In which organ are pyridoxal (PL), pyridoxine (PN), and pyridoxamine (PM) converted to PLP?

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

    What is a rare occurrence related to both biotin deficiency and toxicity?

    <p>Both deficiency and toxicity are rare</p> Signup and view all the answers

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