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19 Cards in this Set

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Food
is any substance that your body can use as a raw material to sustain its growth, repair it, and provide energy.
Good nutrition
ensuring that your body receives what it requires to remain healthy and functional.
Calorie
the measure of energy contained in food
Diet
types of food that he or she eats on a regular basis
Protein
essential for repairing and maintaining body tissues
Polymer
a large molecule formed when many smaller molecules bond together
Enzymes
catalyze, or speed up, specific molecular reactions that otherwise would take place slowly
Substrates
bind to specific places on enzymes
Monosaccharide (example)
glucose or fructose
Disaccharide
2 monosaccharides bonded together
Polysaccharide
many monosaccharides bonded together
Starch
branched chains of glucose – used as food storage in plants
Glycogen
glucose polymer, highly branched – food is stored in the livers as glycogen in animals
Cellulose
long chains of glucose hooked together like a chain linked fence – forms the cell walls of plants and gives plants structural support (cannot be digested) (fiber)
Lipids
Lipids are commonly known as fats and oils
Saturated
Every one of the carbons is filled with hydrogen (single carbon to carbon bond)
Unsaturated
double bond somewhere in the molecule (missing two hydrogens)
Polyunsaturated
numerous double bonds in the molecule – the double bonds increase the melting point of the substance
Enzymes
are a protein that change the rate of a chemical reactions