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Cellular respiration and photosynthesis
What is the purpose of the electron transport chain?
To form a proton gradient across mitochondrial membrane, high concentration in inside, low in matrix
Where does glycolysis occur?
In the cytoplasm
Where does the citric acid cycle/Krebs cycle occur?
In the mitochondrial matrix (middle of mitoch.- cats nap in middle of the floor)
Where does the ETC occur?
In the inner mitochondrial membrane
Where does light reactions occur?
In the thylakoid
Where does the Calvin cycle occur?
In the stroma
Where does the ATP synthase occur?
In the inner mitochondrial membrane(CR) or thylakoid membrane(P)
Is NAD+ oxidized or reduced form? Which agent? Is it high or low energy?
Oxidized form, reducing agent, low energy
Is NADH oxidized or reduced form? Which agent? Is it high or low energy
Reduced form, oxidizing agent, high energy
What are the first 5 stages of glycolysis called?
Energy investment stage
What are the last 5 stages of glycolysis called?
Energy payoff stage
What are the products of glycolysis?
2 pyruvate, 2 ATP, 2 H20, 2NADH
What are the products of the citric acid/Krebs cycle?
2 ATP, 2 FADH2, 4 CO2, 6 NADH (AFCN- a friendly cat naps)
What are the 2 parts/systems of oxidative phosphorylation?
Electron transport chain and chemiosmosis
How does the ETC work?
Electrons get passed from protein complex to protein complex which release energy that pumps hydrogen ions into intermembrane space to keep a concentration gradient
What is the final electron acceptor in the ETC?
Oxygen
How do hydrogen ions get back into the mitochondrial matrix after the ETC just pumped them out?
Through ATP synthase, the wind turbine, that also creates ATP as a result
What is chemiosmosis?
The movement of hydrogen ions across the mitochondrial membrane via ATP synthase
What is the order of alcohol fermentation?
Glucose(glycolysis), pyruvate, acetaldehyde, ethanol
What is the order of lactic acid fermentation?
Glucose(glycolysis), pyruvate, lactic acid
What are the 2 parts/steps of photosynthesis?
Light reactions and the Calvin cycle
What is the primary electron acceptor on photosystem 2?
P680
What is the primary electron acceptor on photosystem 1?
P700
What is the main job for photosystem 1?
Make NADPH
What is the main job for photosystem 2?
Create a hydrogen ion gradient
What is the source of electrons in light reactions?
Water(H2O)
What are the inputs for the Calvin cycle?
3 CO2, 6 NADPH, 9 ATP
What does the Calvin cycle make?
G3P(a sugar)
What is rubisco?
Enzyme that is responsible for carbon fixation stage
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