Macromolecules of Life
Monomers and Polymers
Enzymes
Labs
Miscellaneous
100
If you are eating a cheeseburger, which part of the burger would have the most protein?
The meat
100
If a polymer is like a lego house, then a polymer is like a...
Lego piece
100
Enzymes (slow down / speed up) chemical reactions by (lowering / raising) the activation energy
Speed up / lowering
100
What is the function of salivary amylase?
To break down starch (a polysaccharide) into smaller polymers and monomers.
100
What are the names of the bearded dragons in our class?
Sunny and Spikes
200
Name the four macromolecules of life
Lipids, polysaccharides, nucleic acids, protein
200
Another word for a functional polymer is...
A protein
200
The lock and key model explains that an enzyme must be specific for its _____________.
Substrate
200
What reaction is catalyzed by catalase?
H2O2 --> H2O + O2
200
How many ties does Mr. Choi own? You must get it to the +/- 3 range.
46
300
What macromolecules would you expect to find in a breakfast burrito?
All of them (lipids, protein, polysaccharides, nucleic acids)
300
Chains of ________ _________ form polypeptides, which are eventually folded to become __________.
amino acids; proteins
300
Amylase breaks down glycosidic bonds in a process known as _____________________.
hydrolysis
300
Why is catalase important?
H2O2 is an agent that causes oxidative damage/stress. Catalase lowers the level of H2O2 in cells by helping it become oxygen and water instead.
300
What is the dilution equation?
M1 x V1 = M2 x V2
400
You are trying to back a cake and rub butter across the bottom of your pan. While no one else is looking, you quickly swipe a piece of butter and eat it. What kind of fat did you just eat and why is it solid?
Saturated fat; the lack of carbon-carbon double bonds allow the fatty acid chains to pack together, which increase solidity
400
What is the main structural difference between alpha and beta glucose and what do polymers of alpha glucose and polymers of beta glucose eventually make?
The OH and H group on the first carbon is flipped. Alpha glucose chains make starch and glycogen while Beta glucose chains make cellulose (which cannot be digested by animals)
400
Pepsin is an enzyme that is most active in your stomach. Your body has a pH of about 7.5, while your stomach has a pH of 1.5. If you moved pepsin to your small intestines (pH = 8), what would you expect to happen?
The pepsin would change its structure and stop working
400
You have a test tube of a mysterious sugar compound. What tests could you do to determine if it is a polysaccharide like starch or a monosaccharide like glucose?
Test for starch is Lugol's Iodine test. Test for glucose uses Benedict's reagent.
400
If you have 6mL of a certain acidic solution and add enough water to make 8mL of a 3M acidic solution, what was the concentration of the original solution?
4 M solution
500
In regards to macromolecules, why does it make sense to say "you are what you eat."
We take in the basic molecules of life (the macromolecules), break it down in our bodies, and then build them back up into the macromolecules to use for our body.
500
If you are breaking down glycosidic bonds, what kind of macromolecule did you most likely just eat? What about peptide bonds?
Polysaccharide/sugar ; protein
500
In the following figure, what would be the optimal temperature for the enzyme Trypsin?
The peak of the curve
500
DAILY DOUBLE!!!! SHOW YOUR BIOSPEAK. You have just run a marathon. After depleting nearly all of your glycogen reserves, someone shoves a piece of bread into your mouth and asks you to chew--but not swallow. What is happening chemically in your mouth right now?
The salivary amylase is breaking down the starch, which is a chain of alpha glucose molecules linked together via glycosidic bonds. The starch is broken down to smaller sugars through hydrolysis, which may result in sweeter sugars.
500
Sherlock Holmes was reading the newspaper when a rock suddenly flew through his window, shattering the glass. He stood up and caught a glimpse of the three Willoby brothers, Brock, Mark, and John running around the corner. A couple of hours later, his doorbell rang and he found a note that read this: ? Willoby threw the rock
Mark
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