Cellular Respiration & Fermentation Flashcards
(40 cards)
Why do organic compounds posses potential energy?
because of the bonds between the atoms!
What is the general / parent function for cellular respiration?
C6H12O6 + 6O2 YIELDS 6CO2 + 6H2O + Energy
what is oxidized in this equation?
glucose!
what is reduced in this equation?
oxygen gas
where do the electrons travel to, from glucose?
electron carriers, usually NAD+
what does NAD+ stand for?
nicotinamide adenine di-nucleotide
what enzyme take the electrons (hydrogen ions) out of glucose?
dehydrogenase
what is this equation for reduction of NAD+?
NAD+ + 2H+ + 2e- = NADH + H+
Where else is energy harvested?
substrate level phosphorylation
What are the 4 steps of cellular respiration?
1.) Glycolysis
2.) Pyruvate Oxidation
3.) Citric Acid Cycle
4.) Oxidative Phosphorylation
What does glycolysis mean?
Sugar Splitting
Where does glycolysis occur?
in the cytosol
what does glycolysis produce per glucose molecule?
2 ATP, 2 NADH, 2 Pyruvate
How much ATP does glycolysis use?
2 ATP
What is required for pyruvate oxidation?
oxygen!
where does pyruvate enter to become oxidized?
mitochondria
what is produced in pyruvate oxidation?
2 Acetyl CoA, 2 NADH, 2 CO2
What does FAD stand for?
flavin adenine dinucleotide
What are the products for 2 rounds of the citric acid cycle?
6 NADH, 2 FADH2, 2 ATP
how is the ATP made in the TCA cycle?
via substrate level phosphorylation
Where is a good chunk of the energy taken from not counting the ATP?
the high energy electrons being carried in the NADH and FADH2
what is the electron transport chain?
a set of electron carrier molecules that shuttle electrons down a series of redox reactions that release energy to eventually make ATP**
where is the ETC found?
inner membrane of mitochondria
which is less electronegative NADH or FADH2
NADH
