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Molecules
Picture Vocabulary
Matter and Energy
Molecule
The simplest unit of a chemical compound
that can exist, formed when two or more
atoms join together chemically.
Large Molecule
Made up of smaller organic molecules that are
often strung together to form long molecular
chains, such as carbohydrates, lipids, and
proteins.
Proteins
One of the nutrient-providing components of
food; found in meat, milk, eggs, poultry, fish,
and certain plants, including legumes and nuts.
Amino Acids
The building blocks of the proteins
in our bodies and in the food we eat.
Lipids (Fat)
One of the nutrient-providing components of food; used
as an energy source in the body, and
found in butter, oils, nuts, meat, fish, and
some dairy products.
Fatty Acids
The building blocks of the fat in our bodies
and in the food we eat.
Carbohydrates
One of the nutrient-providing components of food, with
its most simple form being sugar, and
the more complex forms starches
(grains, beans, potatoes, corn) and fiber.
Sugars (Glucose)
A simple molecule with stored chemical energy; the
product of photosynthesis and the building blocks of the
carbohydrates in our bodies and in the food we eat.
Fiber
Tough, stringy structures in plants that the
human body cannot digest or break down,
making them pass unchanged through the
digestive system.
Enzymes
Biological chemicals that help speed up
complex chemical reactions in your body,
completing very specific jobs and doing nothing
else.