7.4 Flashcards
What is the order of stages in cellular respiration?
Glycolysis, The link reaction, Krebs cycle, and ETC
What are the inputs and outputs for glycolysis?
Inputs are Glucose, ADP, and NAD+. Outputs are Pyruvate, ATP, and NADH.
What are the inputs and outputs for the link reaction?
Inputs are Pyruvate and NAD+. Outputs are Acetyl-CoA, NADH, and CO2.
What are the inputs or outputs for the Krebs cycle?
Inputs are Acetyl-CoA, NAD+, ADP, FAD. Outputs are CO2, NADH, ATP, FADH2.
What are the inputs and outputs for the electron transport chain?
Inputs are NADH, FADH2, O2, and ADP+P. Outputs are ATP and water.
Where does glycolysis happen?
Cytoplasm.
Where does the link reaction happen?
Mitochondria matrix.
Where does the krebs cycle happen?
Mitochondria matrix.
Where does the electron transport chain happen?
Inner membrane.
What is the overall chemical equation for cellular respiration?
Glucose + O2 = ATP + CO2 + H2O
What is the difference in oxygen vs no oxygen when making ATP?
ETC, Krebs cycle, and Link reaction occur with oxygen and more ATP is produced.
What is similar between oxygen vs no oxygen when making ATP?
Glycolysis occurs.
How does the structure of the mitochondrion increase its function in producing ATP?
More surface area allows more ETC proteins and ATP synthase to be present.
What happens during the link reaction that links glycolysis to the Krebs cycle?
Acetyl-CoA is produced.
What do NADH and FADH2 do?
Carry electrons to ETC.
What happens to CO2 when it’s produced?
Breathed out.
What gas is produced by the link reaction and the Krebs cycle?
CO2.
What do electrons do as they move down the electron transport chain?
Pump hydrogen ions across the inner membrane.
What is the enzyme that hydrogen ions flow through to form ATP?
ATP Synthase.
How do hydrogen ions flow through ATP synthase?
High concentration to low, facilitated diffusion.
Which stage creates the most ATP?
ETC
Compare alcohol fermentation and lactic acid fermentation.
Both anaerobic, have the same reactants, and make NAD+.
Contrast alcohol fermentation and lactic acid fermentation.
AF produces ethanol and CO2, LAC produces lactic acid. AF isn’t reversible and LAC is. AF happens by bacteria, yeast and plants, LAC happens by animals.
