NDFS 100 BYU Exam #2 – Nutrition Fundamentals Exam Review & Study Guide
What are the functions of fat in the body? *pillow* - (ANSWER)energy fuel
energy stores
cell membranes
emergency reserve
padding (protect organs)
insulation
raw materials
What are the functions of fat in food? - (ANSWER)nutrients
transport
energy
appetite
texture
satiety
sensory appeal
True or False: Fat is the bodies major form of stored energy - (ANSWER)true
T or F: Fat forms the major material of the cell membranes - (ANSWER)true
T or F: Fat provides no nutrients - (ANSWER)False; it provide essential fatty acids, fat-soluble vitamins,
and other needed compounds.
What are the three types of lipids? - (ANSWER)triglycerides, phospholipids, sterols
What is another name for triglycerides? - (ANSWER)fatty acids
What is the structure of a triglyceride? - (ANSWER)3 fatty acids + 1 glycerol molecule
,NDFS 100 BYU Exam #2 – Nutrition Fundamentals Exam Review & Study Guide
glycerol - (ANSWER)3 carbons long - is backbone for triglycerides
function of triglyceride - (ANSWER)its 95% of all fats in food and in the body
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
, NDFS 100 BYU Exam #2 – Nutrition Fundamentals Exam Review & Study Guide
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 are the functions of fat in the body? *pillow* - (ANSWER)energy fuel
energy stores
cell membranes
emergency reserve
padding (protect organs)
insulation
raw materials
What are the functions of fat in food? - (ANSWER)nutrients
transport
energy
appetite
texture
satiety
sensory appeal
True or False: Fat is the bodies major form of stored energy - (ANSWER)true
T or F: Fat forms the major material of the cell membranes - (ANSWER)true
T or F: Fat provides no nutrients - (ANSWER)False; it provide essential fatty acids, fat-soluble vitamins,
and other needed compounds.
What are the three types of lipids? - (ANSWER)triglycerides, phospholipids, sterols
What is another name for triglycerides? - (ANSWER)fatty acids
What is the structure of a triglyceride? - (ANSWER)3 fatty acids + 1 glycerol molecule
,NDFS 100 BYU Exam #2 – Nutrition Fundamentals Exam Review & Study Guide
glycerol - (ANSWER)3 carbons long - is backbone for triglycerides
function of triglyceride - (ANSWER)its 95% of all fats in food and in the body
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
, NDFS 100 BYU Exam #2 – Nutrition Fundamentals Exam Review & Study Guide
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
