Everything is made up of atoms Atoms are listed in the Periodic Table.
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Transcript of Everything is made up of atoms Atoms are listed in the Periodic Table.
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Everything is made up of atoms Atoms are listed in the
Periodic Table
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What’s the difference between atoms and molecules?
• Atoms are like letters (93 kinds found in nature)
• Molecules are like words (millions of atom combinations)
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If everything is made of atoms, what are you made of?
ATOMSYou are a bag of chemicals
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What kind of atoms are we made of?
Almost all (99 percent) of our bodies are made of
HYDROGENOXYGENCARBONNITROGEN
The rest are called TRACE elements and they even include URANIUM (Yikes)
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• If you’re made of atoms, how do you grow bigger?
•How do you move?
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YOU EAT:
Food is divided into 4 categories:
• Proteins
• Lipids (Fats)
• Carbohydrates (sugars and starches)
• Nucleic Acids (DNA, RNA)
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PROTEIN
3D structure of Glycine tofu
Chicken
Steak
Fish
nuts
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• What do proteins do for you?
–Provide structural material
–Help chemicals react
–Remember the question: How do you grow?
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CARBOHYDRATES
Glucose (SUGAR)
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Simple sugars
Complex
Carbohydrates
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• What do carbohydrates do for you?
–Provide energy–Remember the question: How do
you move?–When carbs are digested, broken
apart, energy in atomic bonds is released
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LIPIDS
Stearic acid Found in bacon & butter
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• What do lipids do for you?
–They store energy.
–If body doesn’t need extra energy, it is stored in fat molecules and used later
–(Hopefully)
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Nucleic Acids
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• What do nucleic acids do for you?
–DNA: Makes you you
–In every single one of your cells
–Directs everything from food digestion to hair color to fingernail growth to…
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Our bodies take in chemicals by eating food
• We get energy and raw materials by breaking that food apart inside our bodies
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Digestion
• Digestion begins in the mouth, and then goes into the stomach and intestines
• Digestion is the process of breaking apart molecular bonds to “capture” energy in cell mitochondria
• Energy is stored in ATP molecules
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• ATP is sent around the body.
• It provides the get-up-n-go for all movement, change
• Molecules combine, cells divide, chemicals react, you mow the lawn…
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YOU really
are
WHAT YOU EAT
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