Macrocystis pyrifera 63 Algin and PECTIN Quiz
18 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

Which of the following is a correct application of cellulose in pharmaceuticals?

  • Thickening agent in suspensions
  • Surgical dressing
  • Absorbent gauze for wounds
  • Tablet binder (correct)

    • What is the principal structural element of higher plant cell walls?

  • Pectin
  • Agar
  • Cellulose (correct)
  • Algin

    • Which type of acid is predominantly found in Acacia gum upon hydrolysis?

  • D-galactose
  • Larabinose
  • L-rhamnose
  • D-glucuronic acid (correct)

    • In pharmaceutical formulations, what is the primary function of Sodium carbonylmethylcellulose (CMC)?

    <p>Thickening agent</p> Signup and view all the answers

    Which of the following is considered a pathological product formed upon injury of a plant?

    <p>Acacia gum</p> Signup and view all the answers

    What is the main function of Agar in pharmaceutical applications?

    <p>Thickening agent</p> Signup and view all the answers

    What is the function of gum tragacanth as mentioned in the text?

    <p>As a binder in tablets and lozenges</p> Signup and view all the answers

    Which part of gum tragacanth is water insoluble and swells to form a gel?

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

    What is agar primarily composed of?

    <p>Acidic polysaccharides</p> Signup and view all the answers

    Where is algin (sodium alginate) chiefly obtained from?

    <p>Macrocystis pyrifera</p> Signup and view all the answers

    What is the main characteristic of algin mentioned in the text?

    <p>Readily water-soluble</p> Signup and view all the answers

    For what purpose is agar commonly used according to the text?

    <p>Suspending and emulsifying agent</p> Signup and view all the answers

    Which of the following statements about pectin is NOT true?

    <p>Pectin is obtained exclusively from citrus fruits like lemons and oranges.</p> Signup and view all the answers

    What is the primary source of algin, a polysaccharide used as a thickening and emulsifying agent?

    <p>Kelp seaweed (Macrocystis pyrifera)</p> Signup and view all the answers

    Which of the following statements about agar is correct?

    <p>Agar is obtained from the cell walls of certain red algae species.</p> Signup and view all the answers

    What is the primary role of citric acid in pharmaceutical formulations?

    <p>As a buffering agent and acidulant</p> Signup and view all the answers

    Which of the following statements about mannitol is correct?

    <p>Mannitol is a sugar alcohol obtained by the reduction of mannose or isolated from manna.</p> Signup and view all the answers

    Which of the following polysaccharides is NOT mentioned in the given text?

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

    More Like This

    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser