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

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

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

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

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

What are symptoms of Vitamin B6 toxicity?

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

Which condition results from Folate deficiency?

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

What is the role of Folate in the body?

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

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

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

Which symptom is NOT associated with Vitamin B6 deficiency?

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

How might a diet rich in folate potentially benefit health?

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

What are the symptoms of vitamin B12 deficiency anemia?

<p>Reopening of wounds and diarrhea (D)</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 (B)</p> Signup and view all the answers

What can excessive intake of vitamin C lead to?

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

Which of the following is a function of choline?

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

What are the major food sources of choline?

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

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

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

What autoimmune disorder leads to vitamin B12 deficiency anemia?

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

What does vitamin C help synthesize besides vital cell compounds?

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

What is the primary function of biotin in the body?

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

Which of the following food sources is rich in biotin?

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

How is biotin absorption affected by consuming raw egg whites?

<p>Reduced absorption (A)</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 (D)</p> Signup and view all the answers

What is the primary active coenzyme form of Vitamin B6?

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

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

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

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

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

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