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Nutrition Ch 4 Vocab
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47
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Undergraduate 2
02/05/2013

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Term
glucose
Definition
the most abundant sugar in foods and the primary energy source for your body
Term
photosynthesis
Definition
a process by which green plants create carbohydrates using the energy from sunlight
Term
chlorophyll
Definition
the green pigment in plants that absorbs energy from sunlight to begin the process of photosynthesis
Term
simple carbohydrates
Definition
a category of carbohydrates that contain a single sugar unit or two sugar units combined. monosaccharides and disaccharides are simple carbohydrates
Term
monosaccharide
Definition
one sugar unit. there are three monosaccharides: glucose, fructose, and galactose
Term
disaccharide
Definition
two sugar units. there are three: sucrose, lactose, and maltose
Term
complex carbohydratess
Definition
a category of carbohydrates that contain many sugar units combined. a polysaccharide is a complex carbohydrate
Term
polysaccharide
Definition
many sugar units combined. starch, glycogen, and fiber are all polysaccharides
Term
fructose
Definition
the sweetest of the monosaccharides; also known as fruit sugar
Term
galactose
Definition
a monosaccharide that links with glucose to create the sugar found in dairy foods
Term
sucrose
Definition
a disaccharide composed of glucose and fructose units joined together
Term
maltose
Definition
a disaccharide composed of two glucose units joined together
Term
lactose
Definition
disaccharide composed of glucose and galactose; aka milk sugar
Term
starch
Definition
the storage form of glucose in plants
Term
fiber
Definition
nondigestible polysaccharide
Term
glycogen
Definition
the storage form of glucose in humans and animals
Term
dietary fiber
Definition
nondigestible polysaccharides found in foods
Term
functional fiber
Definition
nondigestible polysaccharides that are added to foods because of a specific desired effect on health
Term
soluble fiber
Definition
a type of fiber that dissolves in water and is fermented by intestinal bacteria. many soluble fibers are viscous and have gummy or thickening properties
Term
insoluble fiber
Definition
a type of fiber that doesn't dissolve in water and is not fermented by intestinal bacteria
Term
bran
Definition
the indigestible outer shell of the grain kernel
Term
germ
Definition
in grains, the seed of the grain kernel
Term
endosperm
Definition
the starchy part of the grain kernel
Term
refined grains
Definition
grain foods that are made with only the endosperm of the kernel. the bran and germ are not included
Term
whole grains
Definition
grain foods that are made with the entire edible grain kernel: the bran and germ are not included
Term
enriched grains
Definition
refined grain foods that have folic acid, thiamin, niacin, riboflavin, and iron added
Term
lactose maldigestion
Definition
the inability to digest lactose in foods due to low levels of the enzyme lactase
Term
lactose intolerant
Definition
when maldigestion of lactose results in symptoms such as nausea, cramps, bloating, flatulence, and dirrhea
Term
hormones
Definition
protein-or-lipid-based chemical substances that act as "messengers" in the body to initiate or direct actions of processes. insulin, glucagon, and estrogen are examples of hormones
Term
insulin
Definition
the hormone, produced in and released from the pancreas, that directs the glucose from the blood into cells
Term
glycogenesis
Definition
the process of converting excess glucose into glycogen in your liver and muscle
Term
glucagon
Definition
the hormone that directs glycogenolysis and gluconeogenesis to increase glucose in the blood. glucagon is produced in and released from the pancreas
Term
glycogenolysis
Definition
the breakdown of glycogen to release glucose
Term
gluconeogenesis
Definition
the creation of glucose from noncarbohydrate sources, predominantly protein
Term
ketone bodies
Definition
the by-products of the incomplete breakdown of fat
Term
ketosis
Definition
the condition of increased ketone bodies in the blood
Term
naturally occurring sugars
Definition
sugars such as fructose and lactose that are found naturally in fruit and dairy foods
Term
added sugars
Definition
sugars that are added to processed foods and sweets
Term
empty calories
Definition
calories that come with little nutrition. jelly beans are an example of a food that provides lots of calories from sugar but few nutrients
Term
dental caries
Definition
the decay or erosion of teeth
Term
baby bottle tooth decay
Definition
the decay of baby teeth in children due to continual exposure to fermentable sugary liquids
Term
remineralization
Definition
the repairing of teeth by adding back the minerals lost during tooth decay. saliva can help remineralize teeth.
Term
diverticulosis
Definition
the existence of diverticula in the lining of your intestine
Term
diverticula
Definition
small bulges at weak spots in the colon wall
Term
diverticulitis
Definition
infection of the diverticula
Term
impaired glucose tolerance
Definition
a condition whereby a fasting blood glucose level is higher than normal (>100mg/dl), but not high enough (less then 126 mg/dl) to be classified as diabetes mellitus. also called prediabetes
Term
hypoglycemia
Definition
a blood glucose level that drops to lower than 70 mg/dl. hunger, shakiness, dizziness, perspiration, and light-headedness are some signs of this
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