The Big 4: Introduction
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Transcript of The Big 4: Introduction
Before we start our new unit, you have to know a few things first…
You’ll need to learn new science vocabulary so you can impress your friends and neighbors…
Oooooh, BIG ScaRy Science word!
What do these words mean?
So What Is A Macromolecule?
Next Word…..
Polygons
Polygamy
Polyester
What does “Mono” mean?
What does “Mono” mean?
A Polymer is a large molecule made up of repeating units called
monomers.
A PolymerA PolymerHere are some analogies to better
understand what polymers and monomers are….
Example #1
Example #2
A Train is like a A Train is like a polymer…polymer…
The whole train is like a polymer The whole train is like a polymer because it is long and made up of because it is long and made up of
smaller repeating units.smaller repeating units.
• What are the monomers in a train? What are the monomers in a train? (Click here to find out)(Click here to find out)
The carsReturn
A Necklace is like a polymer
A Necklace is like a polymer
What is the Monomer?
Each Pearl
Now you and your lab partner
need to think of at least 2 other analogies for a polymer and its
monomers.(Write your analogies on your handout)
•A Polymer is a macromolecule which is a Long/Short (circle one) chain of groups of atoms which repeat many times.•Polymers are made up of a few/many (circle one) small groups of atoms put together. These small groups of atoms are units called _______.
•The monomer is repeated over and over within the ________.
These questions are on your handoutThese questions are on your handout
The Big 4There are 4 types of biochemical macromolecules
•What does “Bio-Chemical” mean?
(Hint: What does “bio” mean?)
(Write your answers on your worksheet)
•Then what is a biochemical macromolecule?
A biochemical is a chemical made by _______________A biochemical is a chemical made by _______________
Three out of the 4 types of biochemical macromolecules
can be found on food nutrition labels…
Hint: They are not vitamins or minerals
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)
(Write your answers on your worksheet)
“DNA” is short for DeoxyriboNucleic AcidNow you know why they just call it DNA!
An example of the An example of the 4th kind of biochemical4th kind of biochemical
macromolecule is…macromolecule is…
DeoxyriboNucleic Acid
The key to knowing the 4th kind of biochemical molecule is the last half of DNA’s name.
DeoxyriboNucleic Acids
The key to knowing the 4th kind of biochemical molecule is the last half of DNA’s name.
DeoxyriboNucleic Acids
The key to knowing the 4th kind of biochemical molecule is the last half of DNA’s name.
Hint: if you wrote down DNA as your answer on your worksheet, it is wrong!
The 4th type of biochemical
macromolecule is the NUCLEIC ACIDS
The 4th type of biochemical
macromolecule is the NUCLEIC ACIDS
The types of Nucleic Acids we will study are:
–DNA (DeoxyriboNucleic Acid)–RNA (RiboNucleic Acid)
Discuss and answer the following questions with your partner.
1) What is a macromolecule?
2) What is a biochemical?
3) What is a polymer?
4) What is a monomer?
5) What are the “Big 4” biochemical macromolecules?
Please do not look at your notes.
When studying these biochemical molecules, we are interested in
finding out…..• what they do for living things.
When studying these biochemical molecules, we are interested in
finding out…..• what they do for living things.
• what they generally look like.
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.
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.
The next episode is….
CarbohydratesCarbohydrates
