day 20 hw review. 1.) what are monomers? provide at least two examples from the reading. single,...
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Day 20 HW Review
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1.) What are monomers? Provide at least two examples from the reading.Single, small molecules that can assemble
into larger complex molecules.(Mono = one)
EX: simple sugars, fatty acids, amino acids, nucleic acids
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2.) What is a subunit?
Small part of something larger.Ex: a single brick is a subunit of a house.
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3.) What are polymers?
Molecules made up of many monomers
(Poly = many)
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4.) a.) #1 Represents a single:
MonomerJustify: it is a single part
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4.) b.) #5 Represents a:
Polymer
Justify: it is made up of many single parts, or monomers.
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5.) Explain what enzymes do
Speed up reactions.
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6.) Explain what condensation is
Condensation is a reaction when cells build large molecules, or polymers, from smaller
molecules, or monomers.
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6.) a.) Draw the model from Fig. 3.4 that represents condensation
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6.) b.) What is released when this reaction occurs?
H2O
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6.) c.) Circle this structural formula in the model you drew for “a” that represents your answer to “b”.
In condensation, water is a PRODCUT
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7.) d. How does water form as a product of condensation? HINT: there’s a functional group involved!
A HYDROXYL group from one molecule combines with a
hydrogen atom from the other molecule.
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7.) Explain what hydrolysis is
Hydrolysis is the reverse of condensation. It is a reaction where a polymer is broken apart into
monomers.
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7.) e.) Draw the model from Fig. 3.4 that represents hydrolysis
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7.) f.) What is required for this reaction to occur?
H2O
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7.) g.) Circle this structural formula in the model you drew for “e” that represents your answer to “f”.
In hydrolysis, water is REQUIRED
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7.) h.) What do hydrolysis enzymes do to break the polymer down into monomers? HINT: there’s a functional group involved
Break a bond by attaching the HYDROXYL group (--OH) to one atom in one monomer and a hydrogen atom (H) to an atom in the other monomer.
The OH and the H come from water (H2O)
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