Chemical reactions

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HAPPY MONDAY BUFFS!!
Bellwork:
(Have out your HW)
Anticipation Guide: Write down
“Agree” or “Disagree” for each
statement.
I love to bake cakes.
2. If you leave sugar out of the cake it,
it will taste the same.
3. I like to eat cookies with milk.
4. If you mix glue and water, it will
make a liquid.
5. A polygon has more than one side.
1.
CO:
I will understand how
Polymers are made.
LO:
I will write notes on
Monomers and Polymers and
participate in the “Gloop
Lab”.
BIOMOLECULES (A QUICK RECAP)
BIO = LIFE
MOLECULE
4
major biomolecules:
1.
2.
3.
4.


= ATOMS BONDED TOGETHER
Carbohydrates
Lipids
Proteins
Nucleic acids (we will talk about this one later)
Biomolecules are molecules that are
essential for life
We find biomolecules in our FOOD!
TURN TO PAGE
Title:
18 OF YOUR I.A.N.
Gloop Lab and
Polymers
Essential Question: How are
large molecules formed?
Set up Cornell Notes.
The underlined words will
need to go on the left.
BIOCHEMISTRY: THE CHEMISTRY OF LIFE



Matter: anything that takes up space
Atom: basic unit of matter, building block of a
molecule
Molecule: two or more atoms bonded together
CHEMICAL REACTIONS
Chemical
reactions
are how ATOMS
bond together and
break apart.
PARTS OF A CHEMICAL REACTION
Arrow: “yields”, makes
Reactants:
what goes INTO the
chemical reaction,
left side of arrow
Products:
what is produced
from the reaction,
right side of arrow
Chemical Reactions in a Cake
MONOMER
 Mono
= one
 Monomers are small molecular units that can
be combined to make larger units.

Monomers are the subunits of polymers
POLYMERS
 Poly
= many
 Polymer = a large molecule made by bonding
smaller molecular units (monomers) together
 Monomer + monomer + monomer +…= polymer
What is the monomer in the above polymers
pictured?
EXAMPLES OF BIOLOGICAL POLYMERS
INCLUDE:

Proteins, Complex Carbohydrates,
Lipids, Nucleic Acids (DNA)
Dehydration synthesis = a process through which
polymers are formed from monomers through the
removal of H2O.
Hydro=water
Lysis=cut
Hydrolysis = the
process of
breaking down
polymers into
monomers by the
addition of H2O.
Hint: Think red
rover
DIRECTIONS FOR MAKING “GLOOP”
*DECIDE ON ONE “MATERIALS PERSON” PER TABLE,
THIS IS THE ONLY PERSON ALLOWED TO LEAVE THE
LAB GROUP*
1.
2.
3.
4.
In your plastic baggie, add glue up to the 1 cm
line (Use a ruler: CM not Inches).
Add 2-4 drops of food coloring to the glue and
knead together with your hands.
Add 7mL of water to the baggie using the
marked graduated cylinder and mix
thoroughly.
Add 8 mL of borax solution to the baggie using
the syringe and mix thoroughly. (Mix the
solution in the beaker before using.)
Gloop Lab Report:
Copy what is in bold and answer the questions:
1. When we added water, what process was
occurring: dehydration synthesis or hydrolysis?
Describe the glue after water was added.
2. When we added borax, what process was
occurring: dehydration synthesis or hydrolysis?
Describe the glue after borax was added.
3. Summarize what happened during the Gloop Lab
in 30 words. You must use the words: polymer,
hydrolysis, dehydration synthesis
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