Minerals Metabolism, Trace Elements, and Vitamin Functions Quiz
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Questions and Answers

What are the two types of vitamin D precursors?

  • Pyridoxine and Ascorbic acid
  • Eicosapentaenoic acid and Docosahexaenoic acid
  • Retinol and Thiamine
  • Ergocalciferol (vitamin D2) and Cholecalciferol (vitamin D3) (correct)
  • Which vitamin acts like a hormone or pro-hormone?

  • Vitamin A
  • Vitamin C
  • Vitamin B12
  • Vitamin D (correct)
  • What is the function of Vitamin E with respect to fatty acids?

  • Increases the breakdown of saturated fatty acids
  • Prevents lipid peroxidation of polyunsaturated fatty acids (correct)
  • Promotes oxidation of polyunsaturated fatty acids
  • Enhances the synthesis of cholesterol
  • Which condition is associated with a deficiency of Vitamin D in adults?

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

    What are the compounds included in the group of Vitamin E compounds?

    <p>Tocopherols and Tocotrienols</p> Signup and view all the answers

    How is Vitamin D synthesized in the body?

    <p>Through exposure to sunlight</p> Signup and view all the answers

    Which mineral is most likely to be deficient in individuals with low growth and physical development?

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

    Which trace element plays a role in chelating amino acids and is essential for protein synthesis?

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

    Which mineral is primarily responsible for the development of a goiter?

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

    Which trace element is deficient in individuals with a genetic disorder called Acrodermatitis enteropathica?

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

    Which mineral is primarily absorbed by an ATP-dependent Ca2+ pump in the body?

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

    Which trace element is involved in the production of metallothionein, a protein responsible for metal ion homeostasis?

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

    Which of the following groups of B vitamins are involved in hematopoietic (blood cell) functions?

    <p>Ascorbic acid (Vitamin C), Folic acid (B9), Cobalamin (B12)</p> Signup and view all the answers

    Which of the following is NOT a B vitamin?

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

    Which of the following is a risk factor for Vitamin K Deficiency Bleeding (VKDB)?

    <p>Being a first-born</p> Signup and view all the answers

    Which of the following genes is associated with Vitamin K Clotting Factor Deficiencies (VKCFD)?

    <p>Gamma carboxylase gene (GGCX)</p> Signup and view all the answers

    Which of the following is NOT a reason for low vitamin K?

    <p>Having a diverse diet</p> Signup and view all the answers

    Which of the following is a B vitamin that plays a role in energy-releasing metabolism?

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

    Study Notes

    Iron Deficiency

    • Most at risk: pregnant women and infants
    • Effects: anemia, fatigue, weakness, pale skin
    • Iron deficiency is the most common nutritional disorder worldwide

    Iodine Deficiency

    • Effects: goiter, hypothyroidism, low growth and physical development
    • Iodine is essential for thyroid hormone production and brain development

    Zinc Deficiency

    • Effects: growth retardation, impaired wound healing, weakened immune system
    • Zinc is an essential mineral that acts as a cofactor for many enzymes

    Copper Deficiency

    • Effects: impaired connective tissue formation, anemia, weakened immune system
    • Copper is essential for the production of hemoglobin and connective tissue

    Calcium Metabolism

    • Calcium is essential for bone health and muscle function
    • Regulated by vitamin D, calcitonin, and parathyroid hormone
    • Absorption of calcium requires vitamin D and a receptor-mediated process

    Vitamin K Deficiency

    • Effects: bleeding disorders, particularly in newborns
    • Risk factors: breastfeeding, malabsorption syndromes, and certain medications
    • Vitamin K is essential for blood clotting and bone health

    Vitamin B Complex

    • Thiamine (B1), Riboflavin (B2), Niacin (B3) are essential for energy production
    • Folic acid (B9), Cobalamin (B12) are essential for hematopoiesis
    • Pyridoxine (B6) is essential for various bodily functions

    Vitamin D Metabolism

    • Precursors: Provitamin-D (Ergocalciferol and Cholecalciferol)
    • Synthesized in skin when exposed to sunlight
    • Acts like a hormone, regulating calcium levels and bone health
    • Deficiency leads to rickets, osteomalacia, and osteoporosis

    Vitamin E Functions

    • Antioxidant properties, protecting cells from oxidative damage
    • Essential for protecting polyunsaturated fatty acids from lipid peroxidation

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    Description

    Test your knowledge on minerals metabolism, trace elements, and the functions of vitamins such as Vitamin D precursors. Learn about Provitamin-D, Ergocalciferol, Cholecalciferol, and their synthesis in the skin under sunlight exposure.

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