24. What is the function of fat in the body?
25. What products are formed when fat is hydrolyzed?
26. What products are formed when fat is saponified?
27. What is the test for the presence of fat or oil?
28. What causes rancidity in fat or oil?
29. What causes a soap to float?
30. What is a germicidal soap? How is it made?
31. What is lysolecithin? What effects does it has on the body? How is it produced?
32. What is meant by the term amphipathic?
33. What is the most common sterol in the body?
34. Illustrate the structural formulas of linoleic, linolenic and arachidonic fatty acids.
35. Illustrate the structural formulas of Stearic, Palmitic and myristic fatty acids.
36. State the general properties of lipids.
37. Why is it lipids are not considered preferred fuel for energy?
38. Show the reaction of acrolein when fat is heated.

It is the hydrolysis of a triglyceride (fat) with an aqueous base such as sodium hydroxide (NaOH). During the process, glycerol is formed, and the fatty acids react with the base, converting them to salts. These salts are called soaps, commonly used in households.

26. What products are formed when fat is saponified?

glycerol and a fatty acid salt called "soap.". The triglycerides are most often animal fats or vegetable oils.

28. What causes rancidity in fat or oil?

Oil becomes rancid (rancid oil) because of the decomposition of fats it has, or sometimes milk becomes rancid because of not heating it in the humid atmosphere, etc.