bio ch 9
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How do organisms get the energy that they need?
BY BREAKING DOWN FOOD MOLECULES GRADUALLY AND CAPTURING THEIR CEMICAL
Which organisms do cellular respiration?
ALL EUKARYOTES (all cells with nucei)
During exercise, what do we rely on for energy?
STORED ATP, CELLULAR RESPIRATION & LACTIC ACID FERMENTATION
What is the starting molecule of glycolysis?
How many net molecules of ATP are made by Glycolysis?
Does Glycolysis require ATP (Trick Question)?
YES – 2 ATPs are consumed and 4 ATPs are produced leaving a gain of 2 ATPs.
What is the correct sequence of events?
Glycolysis -> Krebs Cycle -> Electron Transport
Cellular respiration is aerobic...what does this mean?
IT REQUIRES OXYGEN.
Why do you ‘breath heavy’ after running a race?
YOU ARE REPAYING AN OXYGEN DEBT
Where does cellular respiration occur?
IN THE MITOCHONDRIA
What is a product of cellular respiration?
How does photosynthesis relate to cellular respiration?
THE PRODUCTS OF PHOTOSYNTHESIS ARE THE REACTANTS OF CELLULAR RESPIRATION.
Overall, how many molecules of ATP are produced from 1 molecule of glucose during cellular
How does the Krebs Cycle start and finish?
Pyruvic acid yields carbon dioxide.
In eukaryotes where is the ETC?
INNER MITOCHONDRIAL MEMBRANE
Which molecules pass high energy electrons to the ETC?
NADH & FADH2
What do high-energy electrons that move down the ETC ultimately provide?
THEY CONVERT ADP MOLECULES TO ATP MOLECULES.
Which process is NOT a stage of cellular respiration?
In which cells does lactic acid fermentation occur?
The energy needed to win a 1-minute foot race comes primarily from which process?
LACTIC ACID FERMENTATION.
What is needed to convert pyruvic acid into lactic acid?
What happens during fermentation?
NAD+ IS REGENERATED ALLOWING GLYCOLYSIS TO CONTINUE.
What causes the air bubbles & spongy texture of bread?
bio ch 9
bio ch 9