Chapter 9 Flashcards
catabolic pathway
breakdown of cellular molecules
Where does glycolysis occur?
in the cytoplasm outside the mitochondria
Why is ATP highly exergonic
because of charge repulsion and resonance stabilization
anabolic pathway
synthesis of cellular components
what bond holds the phosphates in ATP together?
phosphoanhydride bonds
what is resonance stabilization
a double bond being shared. The more delocalized it is, the more resonance stable
what happens in phase 1
the glucose is split into 2 G3P by 2 ATP
what happens in phase 2
the 2 G3P are oxidized into one PGA each which creates 2 NADH and 2 ATP
what happens in
the 2 PGA turn into 2 pyruvate and create 2 ATP
what is the net gain of ATP for one molecule of glucose to go through glycolysis
2 ATP
what is the enzyme that breaks down the glucose
hexokinase
what is the purpose of fermentation
to regenerate NAD+ in anaerobic conditions
what is gluconeogenesis
glucose synthesis from pyruvate
what is the energy requirement for gluconeogenesis
4 ATP and 2GTP
out of the 10 reactions, how many in gluconeogenesis are the reverse of glycolysis
7
