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15 Cards in this Set

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fats
lipids
provide energy to body and help body absorb vitamins
villi
folds covered with finger like projections
increases the surfacce area of the small intestine so that nutrients in the chyme have more places to be absorbed
mechanical digestion
chewed, mixed, churned
peristalsis
waves of muscle contractions in the digestive tract
food groups
foods that contain the same nutrient are grouped together
chemical digestion
chemical reaction break down large food molecules into smaller ones

chyme
a thin wateery liquid that moves out of the stomach and into the small intestine
vitamins
organic nutrients needed in small quantities for growth, regulation body functions, and preventing some diseases
proteins
large molecules that contain HONC sometimes sulfur
enzyme
a type of protein that speeds up chemical reactions
carbohydrates
usually the main sources of energy for your body.
CHO
nutrients
substances that provide energy and materials for cell development, growth, and repair
minerals
inorganic nutrients that lack carbon
regulate chem. reactions in the body
amino acids
building blocks of proteins
digestion
process that breaks down food into small molecules so that they can be absorbed and used as energy