gbn.glenbrook.k12.il.us/academics/science/staff/cooper/the%20big%204%20journal%20packet.doc slides...
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gbn.glenbrook.k12.il.us/academics/science/Staff/cooper/THE%20BIG%204%20JOURNAL%20PACKET.doc
Slides used and modified from:
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Before you can understand the topics Before you can understand the topics in this unit there are some key in this unit there are some key
vocabulary terms you need to know.vocabulary terms you need to know.
MacromoleculeMacromolecule
PolymerPolymer
MonomerMonomer
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What do these words mean?
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So What Is A Macromolecule?
You should be able to define it on your own !You should be able to define it on your own !
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Next Word…..
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Polygons
Polygamy
Polyester
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What does “Mono” mean?
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A PolymerA PolymerHere are some analogies to better
understand what polymers and monomers are….
EXAMPLE of POLYMER
MONOMER
A TRAIN ?
A SENTENCE ?
If the train is the whole polymer, what would be If the train is the whole polymer, what would be the small groups that make up the train? If the the small groups that make up the train? If the sentence is the polymer, what are the monomers sentence is the polymer, what are the monomers that make up the sentence?that make up the sentence?
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A PolymerA PolymerHere are some analogies to better
understand what polymers and monomers are….
EXAMPLE of POLYMER
MONOMER
A TRAIN EACH RAILCAR
A SENTENCE EACH WORD
If the train is the whole polymer, what would be If the train is the whole polymer, what would be the small groups that make up the train? If the the small groups that make up the train? If the sentence is the polymer, what are the monomers sentence is the polymer, what are the monomers that make up the sentence?that make up the sentence?
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Now you and a buddy
need to think of at least 2 other analogies for a polymer and its
monomers.
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Three out of the 4 types of biochemical macromolecules
can be found on food nutrition labels…
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Look at the label to the left. 3 of the 4 macromolecules can
be found in foods. The 3 biochemical molecules
found on a nutrition label are:
1____________________
2____________________
3____________________
(0 grams in this product)
(13 grams in this product)
(9 grams in this product)
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The 4th type of biochemical
macromolecules are the NUCLEIC ACIDSThe types of Nucleic Acids
–DNA (DeoxyriboNucleic Acid)–RNA (RiboNucleic Acid)
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“DNA” is short for DeoxyriboNucleic Acid• Now you know why they just call it DNA!
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When studying these biochemical molecules, we are interested in
finding out…..• what they do for living things.
• what they generally look like.
• what their monomers are.
• and how they may help the body gain energy to sustain life.
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Keep the following in mind when studying this material:
Nucleic Acids What they look like
Carbohydrates What they do/Where are they
Lipids What are they made up of-
at the level of atoms
Proteins
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LET’S BEGIN WITH CARBOHYDRATES
They are the main source for the body to gain energy. They are our fuel!
They make up the cell wall in plants which allow them to grow tall, without this carbohydrate, a plant would be a mushy mess! This type of carbohydrate is called Cellulose.
THINK: CARBS= ENERGY and CELL WALLS
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CARBOHYDRATES
•In plant foods- in the cell In plant foods- in the cell walls of plants --- in fruits, walls of plants --- in fruits, vegetables, peas, beans, vegetables, peas, beans, SUGAR comes from a plant SUGAR comes from a plant and so does FLOUR! (pasta, and so does FLOUR! (pasta, potatoes, bread, candy, potatoes, bread, candy, cookies)cookies)
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•In animal products- in MILKIn animal products- in MILK
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CARBOHYDRATES
THERE ARE 2 TYPES OF THERE ARE 2 TYPES OF CARBOHYDRATESCARBOHYDRATES
SimpleSimple ComplexComplex
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Simple Sugars are carbohydrates made up of 1 or 2 monomers.
They also taste sweet.
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Simple Sugars
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Complex Carbohydrates…What are they?
Complex Cabohydrates are polymers Complex Cabohydrates are polymers made up of many monomers.made up of many monomers.
Most also taste starchy.Most also taste starchy.
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Complex Carbohydrates
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CARBOHYDRATES
Carbohydrates are chains Carbohydrates are chains (polymers) made of (polymers) made of
monomers. The most common monomers. The most common monomer of carbohydrates monomer of carbohydrates
is…is…
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The shape of Glucose is a hexagonal ring
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CARBOHYDRATES
Each carbohydrate is made up Each carbohydrate is made up of…of…
THINK: “CHO”THINK: “CHO”
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NOW ONTO PROTEINS
They are the major structural molecules in living things for growth and repair : muscles, ligaments, tendons, bones, hair, skin, nails…IN FACT ALL CELL MEMBRANES have protein in them
They make up antibodies in the immune system
They make up enzymes for helping chemical reactions
They makeup non-steriod hormones which
THINK: Proteins= membranes, enzymes, antibodies, non-steriod hormones, structural molecules, “MEANS”
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MORE ON PROTEINS…
The following slides The following slides give you a little more give you a little more
in depth info on in depth info on things that are made things that are made
of proteins…of proteins…
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Muscles, ligaments, tendons, and bones
Without these particular structural proteins, we would look more like this….
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Well, maybe not exactly…Well, maybe not exactly…
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Hair, Skin, and Nails
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Microscope View ofSkin and Nails
This is skin This is a nail
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Cell Membrane
The cell membrane surrounds everything in a cell so it doesn’t leak out. It is kind of like the balloon in a water balloon.
The cell membrane is made mostly of protein AND lipids.
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Antibodies are part of the immune system. When something enters the body that isn’t supposed to be
there, like certain bacteria, antibodies find the invader and stick themselves onto it. When a white blood cell finds the invader covered with antibodies, it knows it
doesn’t belong there and kills it.
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Enzymes are proteins that speed up chemical reactions. If you didn’t have enzymes in your
stomach to speed up digestion, the food would rot in your stomach because it would take so long!
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Hormones are chemicals made in glands that are in one place in the body and then put into the blood to be used in another.
These are where the
hormone producing
glands are located
in your body.
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The thyroid is found in the middle of your neck, by your voice box. Here is a picture of those cells secreting the thyroid hormone.
Thyroid hormone regulates how fast your body uses energy. If you have an over active thyroid, you use energy quickly and tend to be
very thin and have a hard time putting on weight.
If you have an under active thyroid gland, you use energy very slowly and tend to carry more body fat and have a difficult time losing it.
Don’t be quick to think you have a thyroid problem if you are overweight, chances are it’s actually your eating and exercise habits!
(The yellow stuff isthyroid hormone)
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PROTEINS
•In plant foods- in the cell In plant foods- in the cell membranes membranes
•In animal products- in the In animal products- in the cell membranes- in the cell membranes- in the muscles or living things- muscles or living things- cows, chicken, fish…cows, chicken, fish…
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Proteins
Aside from the protein Aside from the protein found in animal sources…found in animal sources…protein can also be found in protein can also be found in fruits, vegetables, grains, fruits, vegetables, grains, and nuts. and nuts. (it just does not have as many amino acids)(it just does not have as many amino acids)
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PROTEINS
Proteins are made of long Proteins are made of long chains (polymers) made of chains (polymers) made of monomers. All proteins are monomers. All proteins are
made of the monomer…made of the monomer…
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http://www.hcc.mnscu.edu/programs/dept/chem/V.27/amino_acid_structure_2.jpg
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http://upload.wikimedia.org/wikipedia/commons/thumb/c/c5/Amino_acids_2.png/483px-Amino_acids_2.png
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The shapes of proteins are like a balled up piece of
string
Amino Acid
chain
All wound
up
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PROTEINS
Each protein is made up of…Each protein is made up of…
THINK: “CHONS”THINK: “CHONS”
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LIPIDS ARE NEXT
They are a great source of STORED ENERGY so we have it in the future.
They INSULATE the body to maintain normal body temperature and they CUSHION the internal organs for protection.
They produce hormones for the body called STERIODS
They waterproof surfaces of animals,plants, and fruits- these are waxes!
THINK: Waterproof, insulate, steriods, energy, cushion… “WISE C”
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LIPIDS…Some interesting info
•Fruits produce a waxy coating to keep from drying out.
• The cells in a tulip make a wax which helps coat the leaves.
•Ear wax traps dust, sand, and other foreign particles from going deeper into the ear and causing damage.
•Beeswax- a structural material to hold honey in the hive
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LIPIDS…Some interesting info
There are many different types of There are many different types of steroids. They are all lipids. Their steroids. They are all lipids. Their functions vary. Some common functions vary. Some common steroids are:steroids are:
SEX STEROIDSSEX STEROIDS ANABOLIC ANABOLIC STERIODSSTERIODS
CHOLESTEROLCHOLESTEROLLike testosterone Like testosterone and estrogenand estrogen
They increase They increase musclemuscle
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LIPIDS…Some interesting info
Some anabolic Some anabolic steroids are steroids are illegalillegal
And can be dangerous and
very unhealthy
NATURAL STERIODS IN OUR NATURAL STERIODS IN OUR BODY INCREASE MUSCLE BODY INCREASE MUSCLE
GROWTH AND BONE GROWTH AND BONE DEVELOPMENT AND ARE DEVELOPMENT AND ARE
GOOD. THE ILLEGAL ONES GOOD. THE ILLEGAL ONES THAT ARE SYNTHETIC ARE THAT ARE SYNTHETIC ARE
BAD.BAD.
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Very Common Effects of Illegal SteroidsVery Common Effects of Illegal Steroids If used when the person is still growing, they will be shorter as an adult, anabolic steroids will decrease bone growth.Males will experience shrinking of the testicles, and with prolonged
use, the steroid will be turned into estrogen in the male body and it will start to lay fatty tissue on the chest, otherwise known as breasts.
If genetically predisposed to becoming bald, balding will happen more quickly.If clean needles are not readily
available, there is a significantly higher risk of getting AIDS.
Future risks of liver cancer & disease.Enlarged heart which can lead to death
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Illegal Steroid Use in WomenSome additional effects…
Breasts will decrease in size, the opposite of what happens to men.
The woman will start to grow facial hair, how quickly depends on her genetic makeup. If she discontinues use, the facial hair will still continue to grow.
If she is genetically predisposed to balding, she will start to lose her hair, just as if she was genetically male.
Her voice will start to deepen, how quickly depends on her genetics. If she discontinues use, her voice will remain deep.
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LIPIDS
•In plants- in the seedsIn plants- in the seeds
------------------------------------------------------------------------------------------------------
•In animals- in adipose tissue, In animals- in adipose tissue, connective tissue, in animalsconnective tissue, in animals
------------------------------------------------------------------------------------------------------
•Lipids make up the cell Lipids make up the cell membrane of all cells. membrane of all cells.
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LIPIDS
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LIPIDS
Lipids are chains (polymers) Lipids are chains (polymers) made of monomers. The most made of monomers. The most
common monomer of lipids common monomer of lipids is…is…
(1 glycerol + 3 fatty acids)
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The Shape of a triglyceride is like the letter E
This is a triglyceride molecule
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Saturated Fatty Acids have no double bonds and are saturated with hydrogen.
Unsaturated Fatty Acids have double bonds.
www.agen.ufl.edu/~chyn/age2062/lect/lect_02/3_16.gif
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Cis and Trans Fatty Acids
http://users.rcn.com/jkimball.ma.ultranet/BiologyPages/C/cis_trans.gif
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Cis –vs-Trans Shapes
http://www.mansfield.ohio-state.edu/~sabedon/047cis.gif
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LIPIDS
Each carbohydrate is made up Each carbohydrate is made up of…of…
THINK: “CHO”THINK: “CHO”
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OH NO CHO! Lipids like Carbs?
You might have noticed that both carbohydrates and lipids have the elements Carbon, Hydrogen, and Oxygen.
“CHO”
A carbohydrate, has twice as many hydrogen atoms as the number of oxygen atoms.
EX: C6H12O6
(This is a carb= there are double the number of H compared to O)
On the other hand, lipids have a lot more than twice the amount hydrogen atoms as the number of oxygen atoms.
EX: C27H46O cholesterol
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Quick Review Questions
What Big 4 molecule stores energy for the future?
What are 4 effects of illegal steroid use in men and 3 effects in women?
What are 4 things proteins do in your body?
What are the functions of lipids?
What is the main function of carbohydrates?
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Mini QuizExamples of the Big 4
• Each of the following foods is high in one of the Big 4 organic molecules. Decide which one for each of the
following foods.– Corn Oil– Lean Ham
– Bread– Fish
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FINALLY- NUCLEIC ACIDS
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NUCLEIC ACIDS
THERE ARE 2 TYPES OF THERE ARE 2 TYPES OF NUCLEIC ACIDSNUCLEIC ACIDS
DNADNA RNARNA
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Nucleic Acids
1) DNA• Is our genetic material. Chromosomes are
made of DNA.• Chromosomes contain the “recipes” to make
proteins for your body.
2) RNA• Reads the DNA “protein recipes” and makes
the proteins for your body.
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NUCLEIC ACIDS
•In plants- inside the nucleus In plants- inside the nucleus of the cellsof the cells
•------------------------------------------------------------------------------------------------------
•In animals- inside the nucleus In animals- inside the nucleus of each cellof each cell
•------------------------------------------------------------------------------------------------------
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NUCLEIC ACIDS
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NUCLEIC ACIDS
Nucleic Acids are chains Nucleic Acids are chains (polymers) made of (polymers) made of
monomers. Nucleic acids are monomers. Nucleic acids are made up of made up of
Which are nitrogen bases…Which are nitrogen bases…something we will learn more something we will learn more
about when we study DNAabout when we study DNA
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The shape of a nucleic acid is:
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Nucleic Acids
Each nucleic acid is made up Each nucleic acid is made up of…of…
THINK: “PONCH”THINK: “PONCH”
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ENERGY
Three of the BIG 4 provide Three of the BIG 4 provide us with energy through the us with energy through the food we eat:food we eat:BIG 4
MACROMOLECULES
Number of Calories it provides
Carbohydrates
Proteins
Lipids
Nucleic Acids
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ENERGY
Energy that is gained by Energy that is gained by consuming food is called a consuming food is called a
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Energy that we gain by the consumption of food is measured in Calories.
If you drink a glass of skim milk, you will get a gain of 90 Calories of energy for your body.
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Energy Gained From Carbohydrates
Eating 1 gram of carbohydrate provides your body with 4 Calories.
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Energy Gained from Lipids
Eating 1 gram of fat provides your body with
9 Calories. Notice if you eat 1 gram of fat, you are gaining more than twice the amount of
Calories than from a gram of carbohydrate or protein!
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Nucleic acidsThe nucleic acids in food are not considered a substance that the body uses to gain
energy.
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ENERGY So…So…
BIG 4 MACROMOLECULES
Number of Calories it provides
Carbohydrates 4
Proteins 4
Lipids 9
Nucleic Acids 0
TEST: TEST: Are you smart? If you eat a sandwhich with 46 grams of carbs and 24 grams of protein and 10 grams of fat, how much energy
will you gain?
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• What elements are found in all of the Big 4 molecules? Which of the Big 4 has different elements and what are they?
• Since Carbohydrates and Lipids have the same elements in them, how can you tell the difference?
• Would C26H32O5 be a carbohydrate or lipid?• Which molecule is in the shape of a hexagon?• Which molecule is in the shape of an E?• A polymer of amino acids makes what molecule?
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• What kind of carbohydrate gives you a quick burst of energy? • What kind of carbohydrate gives you long term energy? • You are stranded on a desert island and have found a box of
food. Considering you have almost nothing to eat on the island, which of the following would be the best food to have in the box? WHY?– Crackers– Butter– Steak
• How many Calories are found in 1 gram of protein?
• How many Calories are in 1 gram of nucleic acid?
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Name that
MACROMOLECULE!
Pick up your response boards
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Which one of the following molecules is a lipid?
A carbohydrate?
1.) C27H46O
2.) C12H24O12
LipidLipid
CarbohydrateCarbohydrate
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Provides the body with
Stored Energy
lipids
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carbohydrate
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“PONCH”
Nucleic Acid
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Are found in the cell membranes
of all cells
lipid protein
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Are found in the nucleus of plant and animal cells
Nucleic Acid
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Has the monomer called
triglyceride (glycerol & 3 fatty acids)
lipids
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Nucleic Acid
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Provides the hormone called
Steroids
lipid
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“CHO”Twice as many hydrogens as
oxygens
carbohydrates
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Has the monomer called
glucose
carbohydrates
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“CHO”More than twice as many hydrogens as
oxygens
lipid
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The main source of energy for the
body
carbohydrates
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Produces non-steroid hormones and antibodies
for the body (builds and
repairs)protein
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lipid
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The genetic material for
all living things
Nucleic Acids
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“CHONS”
protein
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Responsible for the instructions
to create proteins for the
bodyNucleic
Acid
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also referred to as FATS
lipids
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protein
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