NDFS 100 BYU EXAM #2: Questions And Answers Verified 100% Correct

NDFS 100 BYU EXAM #2: Questions And Answers Verified 100% Correct In what two ways do fatty acids differ from one another? - ANSWER -chain length and degree of saturation T or F: the shorter chain fatty acids or more unsaturated ones are harder - ANSWER -False; they are softer What do fatty acids in food do? - ANSWER -Influence the composition of fats in the body What does it mean when a fatty acid is saturated? - ANSWER -every available bond from the carbon chain is holding a hydrogen atom What does it mean when a fatty acid is unsaturated? - ANSWER -the fatty acid carbon chain has a place where hydrogens are missing What is it called on a carbon chain where a hydrogen is missing? - ANSWER point of unsaturation unsaturated fats have _______ bonds - ANSWER -double What is a monounsaturated fatty acid? - ANSWER -the carbon chain contains just one point of unsaturation What is a polyunsaturated fatty acid? - ANSWER -the carbon chain contains two or more points of unsaturation What is polyunsaturated often abbreviated as? - ANSWER -PUFA T or F: The more carbon atoms in a fatty acid, the longer it is - ANSWER -True T or F: The more hydrogen atoms attached to the carbons in a fatty acid, the more saturated the fatty acid is - ANSWER -True What type of fatty acid is this? - ANSWER -saturated What type of fatty acid is this? - ANSWER -polyunsaturated What does the degree of saturation in a fatty acid of a fat determine? - ANSWER the fat's softness or hardness What does it mean if a glyceride is solid at room temperature? - ANSWER -it contains more saturated fat What does it mean if a glyceride is liquid at room temperature? - ANSWER -it contains less saturated fat T or F: fluid milk is a solid fat - ANSWER -True What is an essential Fatty Acid? - ANSWER -fatty acids that the body needs but cannot make What are the four types of fatty acids? - ANSWER -saturated, monunsaturated, polyunsatured, trans what are the properties of saturated fatty acids? - ANSWER -solid at room temp. what are the health implications for saturated fats? - ANSWER --not good -raises LDL -increases risk of heart disease what has highest amount of saturated fat - ANSWER -coconut oil What are sources of saturated fatty acids? - ANSWER -coconut oil, animal products What are the properties of monounsaturated fatty acids? - ANSWER -liquid at room temp. What are the health implications for monounsaturated fatty acids? - ANSWER good:) What are the sources of monounsaturated fatty acids? - ANSWER -COP: canola, olive, peanut oils What are the properties of polyunsaturated fatty acids? - ANSWER -liquid at room temp What are the health implications for polyunsaturated fatty acids? - ANSWER good not great What are the sources for polyunsaturated fatty acids? - ANSWER -Plant oils, flaxseed and fish oils What polyunsaturated fatty acids do our body NOT make? - ANSWER -Omega 3 and Omega 6 What do saturated fats do to the HDL and LDL? - ANSWER -Decrease HDL and increase LDL What do monounsaturated fats do to the LDL and HDL? - ANSWER -Decrease LDL... does nothing to the HDL What do polyunsaturated fats do to the HDL and LDL? - ANSWER -Decrease both unsaturated fats have what kind of bonds - ANSWER -double What is bile? - ANSWER -an emulsifier structure of phospholipid? - ANSWER --has 2 fatty acids -instead of having the 3rd, it contains phosphorus what does the phosphorus do in phospholipids - ANSWER -makes it soluble in water how are phospholipids versatile - ANSWER -because of phosphorus they are soluble in water but its fatty acids make it also soluble in fat emulsifier - ANSWER -mixes with both fat and water, disperses the fat in water function of phospholipds - ANSWER --form the membranes of cells -help fats travel back and forth across the lipid membranes into the watery fluids on both sides