Quiz on Semisolid Pharmaceutical Forms

What are semisolid pharmaceutical forms?

• Solid systems in which liquid particles are dispersed in a liquid matrix

• Colloidal systems in which solid or liquid particles are dispersed in a semiliquid matrix

• Solid systems in which liquid particles are dispersed in a solid matrix

• Liquid systems in which solid particles are dispersed in a liquid matrix

What is a gel?

• A solid dispersed in a liquid structure

• A solid dispersed in a solid structure

• A liquid dispersed in a solid structure

• A liquid dispersed in a liquid structure

Which natural polysaccharide is produced by fermenting bacteria and used to improve viscosity and texture in food, cosmetic, and pharmaceutical formulations?

• Carboxymethylcellulose (CMC)

• Xanthan gum

• Agar-agar

• Carrageenan

From which type of seaweed is carrageenan extracted?

• Red seaweed

• Blue seaweed

• Green seaweed

• Brown seaweed

What is agar-agar commonly used for?

• Laboratory products

• Food gelation

• All of the above

• Microbiology

What is carboxymethylcellulose (CMC) derived from?

• Starch

• Proteins

• Lipids

• Cellulose

What is the main use of Carbopol polymers?

• Preservatives

• Emulsifiers

• Thickening agents

• Colorants

Who manufactures the actual chemicals in the Carbopol family?

• Xanthomonas bacteria

• Carrageenan producers

• Lubrizol

• Algae

What is the function of Carbopol in semisolid formulations?

• Gelation

• Emulsification

• Preservation

• Coloration

What is the grade level suitable for this quiz?

• Grade 6

• Grade 10

• Grade 9

• Grade 12