Vitamins and Digestion Quiz
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Questions and Answers

What compound is produced when starch is converted by amylase?

  • Sucrose
  • Glucose
  • Maltose (correct)
  • Fructose
  • What color precipitate is formed in Benedict’s test when maltose is present?

  • Brick red (correct)
  • Yellow
  • Green
  • Blue
  • What is the characteristic of water-soluble vitamins in terms of elimination from the body?

  • Rapidly eliminated in urine (correct)
  • Needed in periodic doses
  • Stored in fat tissues
  • Carried in blood by protein carriers
  • Why are fat-soluble vitamins more likely to be toxic when consumed in excess?

    <p>Stored in fat tissues</p> Signup and view all the answers

    Which type of vitamins are more likely to require supplemental doses after an illness?

    <p>Water-soluble vitamins</p> Signup and view all the answers

    In terms of function, what distinguishes water-soluble vitamins from fat-soluble vitamins?

    <p>Functions as coenzymes</p> Signup and view all the answers

    What is the property of enzymes that allows them to speed up chemical reactions effectively?

    <p>They decrease the activation energy of reactions</p> Signup and view all the answers

    In the enzyme isolation and tests part of the experiment, what was the color observed when testing for protein presence?

    <p>Purple or mauve color</p> Signup and view all the answers

    During the salivary amylase (Ptyalin) experiment, what is the significance of observing a brick red precipitate in Benedict's test?

    <p>Presence of reducing sugars</p> Signup and view all the answers

    Which enzyme was specifically mentioned to convert starch into simple sugars during the experiments discussed?

    <p>Salivary amylase (Ptyalin)</p> Signup and view all the answers

    What is the role of Benedict's test in the context of the experiments conducted?

    <p>To identify reducing sugars</p> Signup and view all the answers

    Which test was performed to determine the time interval when no blue color appeared after the iodine test during the salivary amylase experiment?

    <p>Benedict's test</p> Signup and view all the answers

    What color is observed when Vitamin D is present and reacts with aniline hydrochloride?

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

    What type of compound is Vitamin A based on the Carr-Price test results?

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

    What kind of precipitate forms if Vitamin B1 (Thiamine) is present and reacts with Bismuth-KI Reagent?

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

    What color is the solution observed when Vitamin C reacts with NaOH and FeSO4?

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

    Which vitamin test involves a chloroform solution and antimony trichloride?

    <p>Vitamin A test</p> Signup and view all the answers

    What type of organic compound are lipids based on their solubility characteristics?

    <p>Sparingly soluble in organic solvents</p> Signup and view all the answers

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