Exam 1

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5 Terms

1
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Molecular Hierarchy of Structure (smallest to largest)

Monomeric units → Macromolecules → Supramolecular complexes → the cell & its organelles

2
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Unfavorable Reactions

Anabolic process

  • “building” small → big things

  • Requires energy (endergonic)

  • Non-spontaneous +G or G>0

3
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Favorable Reactions

Catabolic process

  • “breaking” big/complex → simple units

  • Releases energy (exergonic)

  • Spontaneous -G or G<0

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Catalyst

A compound that increases rate of chemical reaction (i.e. enzymes)

  • Lower activation free energy (G)

  • Do not alter G

5
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Enzymatic catalysis offers:

  1. Acceleration under mild conditions

  2. High specificity

  3. Possibility for regulation