Which of the Following Are Natural Surfactant Preparations

question 15

Multiple Choice

Which of the following are natural surfactant preparations?
1) Surfaxin
2) Curosurf
3) Survanta
4) Infasurf

• A)1 and 2 only
• B)2 and 3 only
• C)3 and 4 only
• D)2,3,and 4

---

Definitions:

Lecithin

A fatty substance found in plant and animal tissues, used as an emulsifier in food production and as a supplement.

Sodium Stearate

A sodium salt of stearic acid, often used as a surfactant in soaps and as a thickening agent.

Calcium Ions

Positively charged calcium atoms (\(Ca^{2+}\)) that play crucial roles in biological processes, including muscle contraction, neurotransmitter release, and bone formation.

Lipid Bilayer

A fundamental structure in cell membranes composed of two layers of lipid molecules, crucial for cellular integrity and function.