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10 Cards in this Set
- Front
- Back
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what is phosphorylase? |
an enzyme that breaks down polymers into monomers. also the catalyst in our rxn |
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write the specific rxn we used in this experiment |
(n) glucose + g-1-p <> (n+1) glucose + phosphate |
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what does equilibrium constant tell you about a reaction? |
it tells us whether the reactants (small k) or products (big k) are favored. k = [products]/[reactants] |
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what monomer makes up starch? what kinds of bonds link the monomers in the starch molecule? |
glucose is the monomer that makes up starch. alpha-1,4 (in amylose) and alpha-1,6 (in amylopectin) link the monomers in the starch molecule |
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what was the role of the "potato juice" in this experiment? what important ingredients did this solution provide? |
the potato juice provided the g-1-p and the short (n) glucose chains for our experiment |
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explain why 1 mL of water was added to tubes "a" and "c" |
to maintain the same volume in each tube, while also having a control set for our experiment. the KH2PO4 solution was in H2O |
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what reaction mixture is required for the synthesis of starch? |
glucose-1-phosphate + (n) glucose |
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why were the results pos/neg? |
A - neg: no g-1-p for the glucose to react w/ B - neg: same reason above C - pos: g-1-p reacted w/ glucose units D - neg: KH2PO4 excess product made rxn favor reactants, while we were trying to reverse it/favor products |
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what kind of reaction is used to join monomers to make polymers? |
dehydration (removes water, forces new bonds to form, creating polymers) |
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what kind of reaction is used to disassemble a polymer into its constituent monomers? |
hydrolysis (adding water, breaking bonds/polymer chains into monomers) |
