How much do you know about Vitamin C?
22 Questions
1 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the role of vitamin C in collagen synthesis?

  • It acts as a substrate
  • It acts as a product
  • It acts as a catalyst
  • It acts as a reducing agent (correct)

    • Which of the following is NOT a source of vitamin C?

  • Potatoes
  • Lemons
  • Carrots (correct)
  • Strawberries

    • What happens when there is excess vitamin C in the body?

  • It is stored in the liver
  • It is excreted in the urine (correct)
  • It is converted into fat
  • It is broken down into glucose

    • What are the symptoms of a vitamin C deficiency?

    <p>Fatigue, weakness, and joint pain</p> Signup and view all the answers

    What is scurvy?

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

    What is the active form of vitamin C?

    <p>Hydro ascorbic acid</p> Signup and view all the answers

    What is the recommended daily intake of vitamin C?

    <p>100-150 milligrams</p> Signup and view all the answers

    What is the role of vitamin C in the carnitine biosynthesis pathway?

    <p>It acts as a substrate</p> Signup and view all the answers

    What is the primary function of vitamin C in the body?

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

    Which of the following is NOT a good source of vitamin C?

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

    What is scurvy?

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

    What is the active form of vitamin C?

    <p>Dehydroascorbic acid</p> Signup and view all the answers

    What is the recommended daily intake of vitamin C?

    <p>80 milligrams</p> Signup and view all the answers

    What are the symptoms of a vitamin C deficiency?

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

    What happens if you consume excess vitamin C?

    <p>It is excreted in the urine</p> Signup and view all the answers

    Why is it important to consume vitamin C from dietary sources?

    <p>To avoid a vitamin C deficiency</p> Signup and view all the answers

    What should faculty members use to log in to CygNET?

    <p>NUHS computer/email username and password (without @nuhs.edu)</p> Signup and view all the answers

    How long may it take for enrollments to take effect on CygNET?

    <p>Up to 24 hours</p> Signup and view all the answers

    Who should students contact if they are unable to see the courses they have registered for on CygNET?

    <p>Registrar’s office</p> Signup and view all the answers

    What should students do if they are unable to see the courses they have registered for?

    <p>Contact the registrar's office</p> Signup and view all the answers

    How should faculty members log in to CygNET?

    <p>Using their NUHS computer/email username and password</p> Signup and view all the answers

    Will changing the password for My NU Student Portal or CAMS also change the password for CygNET for students?

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

    Study Notes

    Vitamin C: Sources, Metabolic Processes, Absorption, and Deficiency

    • Vitamin C, also known as ascorbic acid, is an essential water-soluble vitamin required for several processes in the body.
    • Vitamin C acts as a reducing agent in collagen synthesis, a cofactor for enzymes in the carnitine biosynthesis pathway, and a cofactor for enzymes in the catecholamine synthesis pathway.
    • Citrus fruits, tomatoes, strawberries, potatoes, Brussels sprouts, and broccoli are good sources of vitamin C.
    • A deficiency in vitamin C causes scurvy.
    • Vitamin C is required in collagen synthesis, catecholamine synthesis, and carnitine biosynthesis.
    • Vitamin C is actively absorbed in the small intestine and excess is degraded in the intestines.
    • Hydro ascorbic acid is also an active form of vitamin C.
    • Blood levels of ascorbic acid generally need to be above 80 milligrams per day for excess vitamin C to be excreted in the urine.
    • A vitamin C deficiency can cause symptoms such as fatigue, weakness, and muscle and joint pain.
    • A severe vitamin C deficiency can result in scurvy, which causes bleeding gums, skin rash, and joint pain.
    • Vitamin C supplements can lead to excess vitamin C being excreted in the urine.
    • It is important to consume a certain amount of vitamin C from dietary sources to avoid a deficiency.

    Studying That Suits You

    Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

    Quiz Team

    Description

    Test your knowledge on Vitamin C with our quiz! Learn about its sources, metabolic processes, absorption, and deficiency symptoms. Discover the importance of this essential water-soluble vitamin in collagen synthesis, catecholamine synthesis, and carnitine biosynthesis. Find out which foods are good sources of vitamin C and the consequences of a deficiency. Take the quiz and take the first step towards a healthier lifestyle!

    More Like This

    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser