Chapter 3 (Exam 4) Powerpoint Summarized - Molec Cell Bio
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13 Terms
Catabolic pathways
breakdown molecules and release energy
Anabolic pathways
build molecules and requires energy input
The 2nd law of thermodynamics
energy transfers increase disorder (entropy)
Negatvie delta G
spontaneous, increases disorder
Positive delta G
nonspontaneous, needs energy input
Oxidation
loss of electrons
Does oxidation release energy or require energy?
release energy
Does reduction release energy or require energy?
require energy
Reduction
gain of electrons
NADH & NADPH carry
2 electrons and 1 proton (H+)
Acetyl-CoA transfers
acetyl groups via a high-energy sulfur bond
NAD+ is a
oxidizing agent in cellular respiration
NADPH is a
reducing agent in biosynthesis (ex: during photosynthesis)
Note 
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