Macrocystis pyrifera 63 Algin and PECTIN Quiz

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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)?

Thickening agent Signup and view all the answers

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

Acacia gum Signup and view all the answers

What is the main function of Agar in pharmaceutical applications?

Thickening agent Signup and view all the answers

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

As a binder in tablets and lozenges Signup and view all the answers

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

Bassorin Signup and view all the answers

What is agar primarily composed of?

Acidic polysaccharides Signup and view all the answers

Where is algin (sodium alginate) chiefly obtained from?

Macrocystis pyrifera Signup and view all the answers

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

Readily water-soluble Signup and view all the answers

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

Suspending and emulsifying agent Signup and view all the answers

Which of the following statements about pectin is NOT true?

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

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

Kelp seaweed (Macrocystis pyrifera) Signup and view all the answers

Which of the following statements about agar is correct?

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

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

As a buffering agent and acidulant Signup and view all the answers

Which of the following statements about mannitol is correct?

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

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

Cellulose Signup and view all the answers