Nutrition NDFS 100 Exam 2 BYU Questions
with Verified Correct Answers
What are the functions of fat in the body?
fuel storage, cushion, temperature regulation, cell membrane,transport and raw material,
hormone synthesis, nerve impulse
What are the functions of fat in food?
concentrated calories, fat-soluble vitamins, aroma, flavor, texture,tenderness, satiety
True or False: Fat is the bodies major form of stored energy
true
T or F: Fat forms the major material of the cell membranes
true
T or F: Fat provides no nutrients
False; it provide essential fatty acids, fat-soluble vitamins, and other needed compounds.
What are the three types of lipids?
triglycerides, phospholipids, sterols
What is another name for triglycerides?
fatty acids
What is the structure of a triglyceride?
3 fatty acids + 1 glycerol molecule
In what two ways do fatty acids differ from one another?
,chain length and degree of saturation
T or F: the shorter chain fatty acids or more unsaturated ones are harder
False; they are softer
What do fatty acids in food do?
Influence the composition of fats in the body
What does it mean when a fatty acid is saturated?
every available bond from the carbon chain is holding a hydrogen atom
What does it mean when a fatty acid is unsaturated?
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?
point of unsaturation
What is a monounsaturated fatty acid?
the carbon chain contains just one point of unsaturation
What is a polyunsaturated fatty acid?
the carbon chain contains two or more points of unsaturation
What is polyunsaturated often abbreviated as?
PUFA
T or F: The more carbon atoms in a fatty acid, the longer it is
True
, T or F: The more hydrogen atoms attached to the carbons in a fatty acid, the more
saturated the fatty acid is
True
What type of fatty acid is this?
saturated
What type of fatty acid is this?
polyunsaturated
What does the degree of saturation in a fatty acid of a fat determine?
the fat's softness or hardness
What does it mean if a glyceride is solid at room temperature?
it contains more saturated fat
What does it mean if a glyceride is liquid at room temperature?
it contains less saturated fat
T or F: fluid milk is a solid fat
True
What is an essential Fatty Acid?
fatty acids that the body needs but cannot make
What are the four types of fatty acids?
saturated, monunsaturated, polyunsatured, trans
what are the properties of saturated fatty acids?
with Verified Correct Answers
What are the functions of fat in the body?
fuel storage, cushion, temperature regulation, cell membrane,transport and raw material,
hormone synthesis, nerve impulse
What are the functions of fat in food?
concentrated calories, fat-soluble vitamins, aroma, flavor, texture,tenderness, satiety
True or False: Fat is the bodies major form of stored energy
true
T or F: Fat forms the major material of the cell membranes
true
T or F: Fat provides no nutrients
False; it provide essential fatty acids, fat-soluble vitamins, and other needed compounds.
What are the three types of lipids?
triglycerides, phospholipids, sterols
What is another name for triglycerides?
fatty acids
What is the structure of a triglyceride?
3 fatty acids + 1 glycerol molecule
In what two ways do fatty acids differ from one another?
,chain length and degree of saturation
T or F: the shorter chain fatty acids or more unsaturated ones are harder
False; they are softer
What do fatty acids in food do?
Influence the composition of fats in the body
What does it mean when a fatty acid is saturated?
every available bond from the carbon chain is holding a hydrogen atom
What does it mean when a fatty acid is unsaturated?
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?
point of unsaturation
What is a monounsaturated fatty acid?
the carbon chain contains just one point of unsaturation
What is a polyunsaturated fatty acid?
the carbon chain contains two or more points of unsaturation
What is polyunsaturated often abbreviated as?
PUFA
T or F: The more carbon atoms in a fatty acid, the longer it is
True
, T or F: The more hydrogen atoms attached to the carbons in a fatty acid, the more
saturated the fatty acid is
True
What type of fatty acid is this?
saturated
What type of fatty acid is this?
polyunsaturated
What does the degree of saturation in a fatty acid of a fat determine?
the fat's softness or hardness
What does it mean if a glyceride is solid at room temperature?
it contains more saturated fat
What does it mean if a glyceride is liquid at room temperature?
it contains less saturated fat
T or F: fluid milk is a solid fat
True
What is an essential Fatty Acid?
fatty acids that the body needs but cannot make
What are the four types of fatty acids?
saturated, monunsaturated, polyunsatured, trans
what are the properties of saturated fatty acids?
