Ascorbate Function in the Body

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Questions and Answers

What is the primary reason for scurvy, according to the text?

  • Maintaining normal connective tissue
  • Synthesis of carotenoids
  • Role in post-translational modification of collagens (correct)
  • Deficiency in Vitamin A

Which of the following functions as a reducing agent in different reactions?

  • Vitamin D3
  • Retinoic acid
  • Vitamin A
  • Ascorbate (correct)

Which vitamin is involved in the hydroxylation of proline residues in collagen?

  • Calcitriol
  • Vitamin D2
  • Vitamin A
  • Vitamin C (correct)

What symptoms are associated with scurvy, as mentioned in the text?

<p>Muscle fatigue and decreased wound healing (D)</p> Signup and view all the answers

What is the role of ascorbate in wound healing, according to the text?

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

What is the clinical significance of Vitamin D deficiency in children?

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

What is the major function of Vitamin E?

<p>Acting as a natural antioxidant (C)</p> Signup and view all the answers

Which of the following is a clinical significance of Vitamin E deficiency?

<p>Increased red blood cell fragility (A)</p> Signup and view all the answers

What is the primary role of Vitamin K in the body?

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

Which proteins are maintained at normal levels by Vitamin K?

<p>Factors II, VII, IX, X (D)</p> Signup and view all the answers

What can be a result of Vitamin K deficiency in newborn infants?

<p>Excessive bleeding due to impaired clotting (C)</p> Signup and view all the answers

How does Vitamin E contribute to preventing peroxidation of membrane fatty acids?

<p>By acting as a natural antioxidant (D)</p> Signup and view all the answers

What is the most prominent function of vitamin C?

<p>Helping wounds heal (C)</p> Signup and view all the answers

Which group of diseases might vitamin C help protect against?

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

Where can vitamin C be found naturally?

<p>Citrus fruits and vegetables (D)</p> Signup and view all the answers

Which type of vitamin is vitamin C classified as?

<p>Water-soluble vitamin (D)</p> Signup and view all the answers

What happens to excess amounts of water-soluble vitamins like vitamin C in the body?

<p>Leave the body through urine (D)</p> Signup and view all the answers

Which of the following is NOT one of the fat-soluble vitamins mentioned in the text?

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

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