Final answer:
Corn and soybean oils are important sources of polyunsaturated fats, which are lipids containing multiple double bonds in their hydrocarbon chains. These oils are liquid at room temperature and provide essential fatty acids that are beneficial for health.
Step-by-step explanation:
The correct answer to the question, 'What oils, such as corn and soybean, are important food sources of polysaturated fatty acids in our food supply? (9-letter word)' is b) Polyunsaturated. Polyunsaturated fats are lipids with two or more double bonds in their hydrocarbon chains. These types of fats are generally liquid at room temperature and are referred to as oils. Food sources of predominantly polyunsaturated fats include plant oils like soybean and corn, fish, flaxseeds, as well as some nuts like walnuts and pecans.
Polyunsaturated fatty acids, which include alpha-linolenic acid (omega-3), are essential in our diet. They provide numerous health benefits and are necessary for proper body functioning. Foods are often categorized by the predominant type of fatty acid they contain, and in the case of corn and soybean oil, it is polyunsaturated fats.