Vitamins B1, B2, B3 Overview
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Questions and Answers

What is the primary role of Vitamin B1 (thiamine)?

  • Immune function
  • Energy metabolism (correct)
  • Vision improvement
  • Bone health
  • Thiamine is stable in an alkaline environment.

    False

    Name one dietary source of thiamine.

    Whole grains, legumes, or meats

    Vitamin B1 deficiency can cause __________ syndrome.

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

    Which of the following factors increases the risk of vitamin B1 deficiency?

    <p>Alcohol dependence</p> Signup and view all the answers

    What happens to thiamine during cooking?

    <p>About 50% is destroyed</p> Signup and view all the answers

    Match the vitamin with its characteristic or effect:

    <p>Vitamin B1 = Converts carbohydrates into energy Vitamin B2 = Sensitive to light Vitamin B1 deficiency = Causes beriberi</p> Signup and view all the answers

    Thiamine is a sulfur-containing vitamin that plays a key role in __________ activity.

    <p>nerve and muscle</p> Signup and view all the answers

    Which of the following foods is a rich source of Vitamin B7?

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

    Vitamin B9 is sometimes referred to as folic acid.

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

    What deficiency symptoms are associated with Vitamin B7?

    <p>Fatigue, depression, and dermatitis.</p> Signup and view all the answers

    Vitamin B9 is essential for __________ development and function.

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

    Match the following vitamins with their primary sources:

    <p>Vitamin B7 = Eggs, fish, meat Vitamin B9 = Beans, peanuts, whole grains</p> Signup and view all the answers

    What is the other name for vitamin B3?

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

    Niacin can be used for both dietary and therapeutic purposes.

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

    What deficiency can occur due to a lack of Vitamin B3?

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

    Vitamin B3 is also referred to as __________.

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

    Match the following terms with their correct descriptions:

    <p>Niacin = Vitamin B3 Pellagra = Deficiency disease related to Vitamin B3 Niacinamide = Form of niacin with therapeutic uses Pyridine derivative = Chemical classification of niacin</p> Signup and view all the answers

    What is one key function of Vitamin B3?

    <p>It prevents free radicals</p> Signup and view all the answers

    Vitamin B3 deficiency does not lead to skin problems.

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

    Name one of the diseases associated with Vitamin B3 deficiency.

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

    Niacinamide is also known as __________.

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

    Which of the following is a derivative of niacin?

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

    Which of the following is NOT a dietary source of niacin?

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

    Tryptophan can be converted to niacin in the body.

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

    What classic condition is associated with niacin deficiency?

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

    Niacin helps lower _____ cholesterol.

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

    Match the niacin uses with their descriptions:

    <p>Acts as a coenzyme = Involved in energy-transfer reactions Protects against Alzheimer's disease = Neurological protection Lowers cholesterol = Improves heart health Reduces arthritis symptoms = Eases joint pain</p> Signup and view all the answers

    Which of the following symptoms is NOT part of the 3D's of niacin deficiency?

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

    Oral lesions such as angular stomatitis are a common symptom of niacin deficiency.

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

    Name two good dietary sources of niacin.

    <p>Meat and fish</p> Signup and view all the answers

    Roasting coffee beans releases a significant quantity of _____ as well as a characteristic flavor.

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

    Niacin can only be obtained through dietary sources.

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

    What is another name for vitamin B5?

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

    Vitamin B5 is known to normalize blood lipid profiles.

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

    List one dietary source of vitamin B5.

    <p>Animal organs, cereal grains</p> Signup and view all the answers

    Vitamin B5 aids in the synthesis of ______, neurotransmitters, steroid hormones, and hemoglobin.

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

    Match the vitamin with its corresponding property:

    <p>Vitamin B5 = Involved in energy production Vitamin B6 = Three related pyridine derivatives Pyridoxine = Commonly referred to for vitamin B6 Pantothenic acid = Another name for vitamin B5</p> Signup and view all the answers

    What can a deficiency in vitamin B5 cause?

    <p>Fatigue and sleep disturbances</p> Signup and view all the answers

    Vitamin B6 is often used interchangeably with the term pyridoxine.

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

    What is the primary function of vitamin B5 related to food?

    <p>To turn food into energy</p> Signup and view all the answers

    The hydrolysis of pantothenic acid yields ______ and pantoic acid.

    <p>B-alanine</p> Signup and view all the answers

    Which component is NOT a vitamin B6 derivative?

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

    Study Notes

    Vitamin B1 (Thiamine)

    • Thiamine is a sulfur-containing vitamin that is important for energy metabolism and nerve activity.
    • It is found in whole grains, legumes, and meats.
    • Alcohol inhibits absorption of thiamine.
    • Deficiency causes clinical syndromes including Wernicke-Korsakoff syndrome and beriberi.
    • Risk factors include alcohol dependence, malabsorption, and a diet low in thiamine.

    Vitamin B2 (Riboflavin)

    • Riboflavin is a yellow, heat-stable, and slightly water-soluble vitamin.
    • Sensitive to light and degrades to lumichrome and lumiflavin.
    • Neutralizes free radicals and acts as an antioxidant.
    • Deficiency causes stomatitis and dermatitis.

    Vitamin B3 (Niacin)

    • It is a naturally occurring pyridine derivative that prevents pellagra.
    • Found in meats, fish, and dairy products.
    • Acts as a coenzyme in energy-transfer reactions.
    • Helps lower LDL cholesterol, reduces risk of cardiovascular diseases, and eases arthritis.
    • Deficiency causes pellagra, with symptoms including dementia, dermatitis, and diarrhea.

    Vitamin B5 (Pantothenic Acid)

    • Pantothenic acid is a component of the Vitamin B complex.
    • Rich sources include animal organs and cereal grains.
    • It is involved in the synthesis of lipids, neurotransmitters, steroid hormones, and hemoglobin.
    • Helps repair tissues and cells of the skin and hair.
    • Deficiency causes fatigue and sleep disturbances.

    Vitamin B6

    • Vitamin B6 refers to pyridoxol, pyridoxal, and pyridoxamine, which are closely related pyridine derivatives with similar physiological activity.

    Vitamin B7 (Biotin)

    • Biotin is a coenzyme involved in transferring carbon dioxide.
    • It is important in breaking down carbohydrates, fats, and proteins into energy.
    • It is also involved in fat and protein metabolism of hair roots, fingernails, and skin.
    • Rich sources include eggs, fish, meat, seeds, nuts, and certain vegetables.
    • Deficiency causes fatigue, depression, and dermatitis.

    Vitamin B9 (Folate)

    • Folate is essential for brain development and function.
    • Good sources include beans, peanuts, sunflower seeds, fresh fruits, fruit juices, whole grains, and liver.

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    Description

    This quiz covers essential information about Vitamins B1, B2, and B3, including their functions, sources, and deficiency implications. Learn about thiamine, riboflavin, and niacin, highlighting their importance in metabolism and overall health. Test your knowledge on these crucial nutrients!

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