Redox Reactions and Respiration Flashcards
Why are redox reactions important?
used to get energy for the cell which is then stored as ATP.
What happens during oxidation reduction reaction?
energy is released through the transfer of electrons
The molecule that ________ the electrons is oxidized
loses
the molecule that ________ the electrons is reduced
gains
What happens during the two half reactions?
- donation of electrons by the donor
- acceptance of electrons by the acceptor
T/F all half reactions are written as reductions
T
Why are all half reactions written as reduction?
easiest to put them all into the same orientation
the equilibrium constant for half reactions is called the _______ _________ ______ (delta E) and is measured in volts
standard reduction potential
If the standard reduction potential (delta E) is negative, the reaction is more likely to progress _________, and is more likely to be a ________
backwards, donator
If the standard reduction potential (delta E) is positive, the reaction is more likely to progress _________, and is more likely to be a ________
forwards, acceptor
T/F a redox pair will always be written as acceptor(+)/donor(-)
T
In the redox pair of CO2/methanol, which molecule will donate electrons
methanol
in a redox reaction with NAD+/NADH and NO3-/NO2- what will be the electron donor and what will be the acceptor?
NO3- is the acceptor
NADH is the donor
In the electron tower, the most ________ reduction potentials are at the top and the most _______ are at the bottom
negative, positive
What do the variables stand for in the following equation?
ΔG° = -nFΔE°
ΔG° = change in free energy
-n = number of electrons involved
F = faradays constant (96.5 kJ/V)
ΔE° = change in standard reduction potential
