WGU C190 Intro to Biology practice test exam 2023 with 100% correct answers

Fats and oils are composed of Fatty acids and glycerol Fatty acids can naturally be saturated or unsaturated. A saturated fatty acid has . All single covalent bonds Triglycerides, a type of fat, are composed of what two subunits? Fatty acids and glycerol What would you have to do to make a fat from the fatty acid shown above? Attach it to a glycerol along with two other fatty acids. If one or more of the fatty acids in a triglyceride include omega-3 fatty acids, what can you predict about this substance at room temperature? It is a liquid oil What kinds of molecules are the major fuel for the salmon's long trip? Triglycerides (fats / oils) Based on your knowledge of the structure of triglycerides, what products would you expect to result from the complete hydrolysis of a fat molecule? More than one is correct. Fatty acids and glycerol The blubber layer helps insulate mammals and birds that live in cold water; fat does not conduct heat very quickly. Applying what you know about lipids, what is the main advantage of covering feathers or fur in oil? Oil sheds water and keeps underlying layers of fur or downy feathers dry. Another type of lipid that composes cells are called phospholipids. Phospholipids differ from other lipids because they Contains a hydrophobic and hydrophilic end Highly simplified diagram of a membrane's structure is made up of Phospholipids Which part of the molecules is hydrophilic? The heads