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