chapter 4 Flashcards
produced by plants through photosynthesis
principle form of carbohydrate in blood
glucose
contain only 1 or 2 molecules
simple carbs
glucose, fructose, galactose
monosaccharides
lactose, maltose, sucrose
disaccharides
contain many molecules
starch, glycogen, fiber
complex carbs
most abundant in our diet; good energy source; primary carb in blood; main source of energy
glucose
sweetest natural sugar; found in fruit; high corn syrup
fructose
does not occur alone in foods; binds with glucose to form lactose
galactose
produced during complex carb digestion
molecules join
maltose
glucose + glucose
found in sugar cane, sugar beets, honey
sucrose
glucose + fructose
plant storage of glucose
starch
storage form of glucose in animals + humans
stored in liver + muscles
glycogen
the non digestible skeleton of plants
dietary fiber
nondigestible carbohydrate, known health effects, extracted from plants or manufactured and added to foods
functional fiber
dissolves in water
fermented by bacteria in colon
found in citrus fruits, berries, oats, and beans
reduces risk for cardiovascular disease and type 2 diabetes
soluble fiber
do not dissolve in water
not fermented by bacteria
found in whole grains
promote regular bowel movements
insoluble fibers
production of ketones due to high amount of fat metabolism
fasting, low carb intake, vigorous exercise
ketosis
enzyme produced in the salivary glands and secreted into the mouth
begins breakdown of starch into ____ and into ______
stops when food reaches ____
salivary amylase
maltose
shorter polysaccharides
stomach
enzyme produced in the pancreas and secreted into small intestine
enzymatically digests starch to ____
pancreatic amylase
maltose
a hormone secreted by the pancreas - ___ cells
when blood glucose is elevated: helps transport glucose into cells
stimulates the liver and muscles to take up glucose and convert it to _______
insulin
beta
glycogen
hormone secreted by pancreas - ____
when blood glucose drops
stimulates the breakdown of glycogen in liver to glucose to make glucose available to cells of the body
stimulates ______ - the production of new glucose from amino acids (proteins)
glucagon
alpha
gluconeogenesis
a measure of a foods ability to raise glucose levels
glycemic index
outer covering
high in fiber vitamins and minerals
bran
base of kernel
healthful fat, some vitamins
germ