Exam 2 - week 6 Flashcards
When glucose is oxidized to CO2 by burning, energy is released as what?
Heat and Light
glucose is oxidized through a long series
of carefully controlled ______ reactions
redox
Another route to produce ATP
fermentation
cellular respiration is a set of what 4 processes
Glycolysis, pyruvate processing, citric acid cycle, and Electron Transport and Oxidative Phosphorylation
A six carbon glucose is broken down into two three-carbon pyruvate molecules
Glycolysis
each pyruvate is oxidized to form acetyl CoA
Pyruvate Processing
Each acetyl CoA is oxidized to CO2
Citric Acid Cycle
Electrons move through a transport chain and their energy is used to set up a proton gradient, which is used to make A T P
Electron transport and oxidative phosphorylation
3 key points of glycolysis
Starts by using two ATP in the energy investment phase, During energy payoff phase, NADH is made and ATP is produced, The net yield is 2 NADH, 2 ATP, and 2 Pyruvate
how is glycolysis regulated?
feedback inhibition by high levels of ATP (phosphofruktokinase)
In eukaryotes, where is pyruvate produced by glycolysis transported into?
Mitochondria
sack like compartments formed by the inner membrane
cristae
where is the mitochondrial matrix located
inside the inner membrane
Where does the citric acid cycle (krebs) occur?
mitochondrial matrix, in eukaryotes and in the cytosol in prokaryotes
The molecules that oxidize NADH and FADH2 are called what
electron transport chain
where is the electron transport chain located?
inner mitochondrial membrane
what is the final electron aceptor in the electron transport chain?
oxygen
As electrons move from one molecule to another in the ETC
They are held more and more tightly as they move in
