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

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

<p>Functions as coenzymes (A)</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 (A)</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 (C)</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 (A)</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) (B)</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 (D)</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 (D)</p> Signup and view all the answers

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

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

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

<p>Lipid (A)</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 (C)</p> Signup and view all the answers

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

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

Which vitamin test involves a chloroform solution and antimony trichloride?

<p>Vitamin A test (D)</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 (C)</p> Signup and view all the answers

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