NDFS 100 BYU EXAM #2 : NEWEST EXAM WITH CORRECT ACTUAL
QUESTIONS AND CORRECTLY WELL DEFINED ANSWERS LATEST ALREADY
GRADED A+ 2025 – 2026
What are the three types of lipids? - SOLUTION-triglycerides, phospholipids, sterols
What is another name for triglycerides? - SOLUTION-fatty acids
What is the structure of a triglyceride? - SOLUTION-3 fatty acids + 1 glycerol molecule
glycerol - SOLUTION-3 carbons long - is backbone for triglycerides
function of triglyceride - SOLUTION-its 95% of all fats in food and in the body
In what two ways do fatty acids differ from one another? - SOLUTION-chain length and degree of
saturation
T or F: the shorter chain fatty acids or more unsaturated ones are harder - SOLUTION-False; they
are softer
,What do fatty acids in food do? - SOLUTION-Influence the composition of fats in the body
What does it mean when a fatty acid is saturated? - SOLUTION-every available bond from the
carbon chain is holding a hydrogen atom
What does it mean when a fatty acid is unsaturated? - SOLUTION-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? – SOLUTION point of
unsaturation
unsaturated fats have _______ bonds - SOLUTION-double
What are the functions of fat in the body? *pillow* - SOLUTION-energy fuel energy stores cell
membranes emergency reserve padding (protect organs) insulation raw materials
What are the functions of fat in food? - SOLUTION-nutrients transport
energy
appetite texture
satiety sensory
appeal
True or False: Fat is the bodies major form of stored energy - SOLUTION-true
T or F: Fat forms the major material of the cell membranes - SOLUTION-true
, T or F: Fat provides no nutrients - SOLUTION-False; it provide essential fatty acids, fat-soluble
vitamins, and other needed compounds.
What is a monounsaturated fatty acid? - SOLUTION-the carbon chain contains just one point of
unsaturation
What is a polyunsaturated fatty acid? - SOLUTION-the carbon chain contains two or more points of
unsaturation
What is polyunsaturated often abbreviated as? - SOLUTION-PUFA
T or F: The more carbon atoms in a fatty acid, the longer it is - SOLUTION-True
T or F: The more hydrogen atoms attached to the carbons in a fatty acid, the more saturated the
fatty acid is - SOLUTION-True
What type of fatty acid is this? - SOLUTION-saturated
What type of fatty acid is this? - SOLUTION-polyunsaturated
What does the degree of saturation in a fatty acid of a fat determine? - SOLUTION-the fat's
softness or hardness
What does it mean if a glyceride is solid at room temperature? - SOLUTION-it contains more
saturated fat
QUESTIONS AND CORRECTLY WELL DEFINED ANSWERS LATEST ALREADY
GRADED A+ 2025 – 2026
What are the three types of lipids? - SOLUTION-triglycerides, phospholipids, sterols
What is another name for triglycerides? - SOLUTION-fatty acids
What is the structure of a triglyceride? - SOLUTION-3 fatty acids + 1 glycerol molecule
glycerol - SOLUTION-3 carbons long - is backbone for triglycerides
function of triglyceride - SOLUTION-its 95% of all fats in food and in the body
In what two ways do fatty acids differ from one another? - SOLUTION-chain length and degree of
saturation
T or F: the shorter chain fatty acids or more unsaturated ones are harder - SOLUTION-False; they
are softer
,What do fatty acids in food do? - SOLUTION-Influence the composition of fats in the body
What does it mean when a fatty acid is saturated? - SOLUTION-every available bond from the
carbon chain is holding a hydrogen atom
What does it mean when a fatty acid is unsaturated? - SOLUTION-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? – SOLUTION point of
unsaturation
unsaturated fats have _______ bonds - SOLUTION-double
What are the functions of fat in the body? *pillow* - SOLUTION-energy fuel energy stores cell
membranes emergency reserve padding (protect organs) insulation raw materials
What are the functions of fat in food? - SOLUTION-nutrients transport
energy
appetite texture
satiety sensory
appeal
True or False: Fat is the bodies major form of stored energy - SOLUTION-true
T or F: Fat forms the major material of the cell membranes - SOLUTION-true
, T or F: Fat provides no nutrients - SOLUTION-False; it provide essential fatty acids, fat-soluble
vitamins, and other needed compounds.
What is a monounsaturated fatty acid? - SOLUTION-the carbon chain contains just one point of
unsaturation
What is a polyunsaturated fatty acid? - SOLUTION-the carbon chain contains two or more points of
unsaturation
What is polyunsaturated often abbreviated as? - SOLUTION-PUFA
T or F: The more carbon atoms in a fatty acid, the longer it is - SOLUTION-True
T or F: The more hydrogen atoms attached to the carbons in a fatty acid, the more saturated the
fatty acid is - SOLUTION-True
What type of fatty acid is this? - SOLUTION-saturated
What type of fatty acid is this? - SOLUTION-polyunsaturated
What does the degree of saturation in a fatty acid of a fat determine? - SOLUTION-the fat's
softness or hardness
What does it mean if a glyceride is solid at room temperature? - SOLUTION-it contains more
saturated fat
