Station 1: Vocabulary
Part 1: Write the word and the definition for the following words.
-enzyme – catalyst, speed up reaction lowering
activation energy
--ions - charged atoms due to gaining or losing an
electron
-element – molecule of one kind of atom, is a pure
substance that can’t be broken down into other types
of matter
-organic compounds – compounds containing carbon
Part 2: Draw these monomers and write their names.
Amino Acid (remember there are 20 of them)
Nucleotide
Fatty acid
Monosaccharide (ringed monomer)
Station 2: Chemical Reactions
Directions: Use this graph and answer the questions below.
B
A
C
1. What does A represent? Reactants
2. What does B represent? Activation Energy – amount necessary to start rxn
3. What does C represent? Products
4. What are the reactants? Left side – 03 , NO
5. What are the products? Right side – NO2 , 02
6. Draw this same energy diagram, but add another line to show the reaction
with an enzyme. – Draw a line that starts at A and has a smaller rise toward B
7. Enzymes __Speed up____ reaction rates by __lowering__ the Activation
Energy.
Station 3: Macromolecules
Directions:
1. Make this chart on your paper
Carbohydrate
Quick Energy
Monosaccharide
Polysaccharide
Pastas and breads
Protein
Milk, Meat, Fish
Make hair, skin,
muscle
Polypeptide
Amino Acids
20 Monomers
Lipid
Nucleic Acid
Milk, Meat, Fish
Triglyceride
Does not mix with water
Fatty Acids
Oils, fats, waxes,
steroids
Stores energy and
makes cell membranes
Nucleotide
Found in everything
Stores genetic info
4 nucleotides
2. Place the following words and phrases in the correct column on your
paper.
Provides quick energy
Nucleotide
Found in milk, meats, and fish
Used to make hair, skin, and muscle
Monosaccharide
Triglyceride
Polypeptide
Does not mix with water
Found in pastas, and breads
Amino acids
Fatty acids
Found in oils, fats, waxes, steroids, hormones
Stores energy and makes cell membranes
Stores genetic information
Polysaccharide
Has 20 different monomers
Station 4: Atoms, Ions, and Water
Directions:
1. Make this chart on your paper
Acid
pH < 7
High H+/H30+
Low Concentration of 0H-
Neutral
pH = 7
Roughly equal OH- to H+
Base
pH>7
High concentration of OHLow concentration of
H+/H3O+
2. Place the term or phrase in the correct column on your paper
High concentration of OHHigh concentration of H+/H3O+
Low concentration of OH-
pH<7
Low concentration of H+/H3O+
pH>7
3.
Draw and label this water molecule and explain why it is considered to be polar.
It is polar because it has a positive charge on one side and a negative on the other.
What is the name of the compound or element?
4.
5.
6.
HCl
Hydrochloric acid
7.H2SO4
Sulfuric Acid
NaOH Sodium hydroxide
8. N
Nitrogen
C
9. NaCl
Sodium Chloride
Carbon
Station 5: Enzymes
1. Draw and label the following in the lock and key model: substrate, enzyme,
Enzymeproduct.
enzyme
substrate
enzyme
Product
Substrate
complex
2. What two things can denature an enzyme? Too low or too high of a pH
or too high of a temperature
3. How do enzymes speed up reactions? They lower Activation E
4. List two special features about enzymes. Reusable, Speed up rxns
5. What should the label be for the X-axis? Enzyme Concentration
6. What is represented by letter B? Point of saturation
7. Why does the graph level off? All Enzymes are busy, they can’t work
any faster