Chapter 7 Flashcards
(23 cards)
Cellular respiration
Biochemical pathway for extracting energy from chemical bonds in gluclose
(ATP)
Which organisms do cellular respiration
Animals, plants, many fungi, protists and prokaryotes
Chemical reaction summary of C/R
C6H12O6 + 6O2 ∆ 6CO2 + 6H2O + ATP
Stages of C\R
Glycolysis
Transition step
Krebs cycle
E.T.C
Krebs cycle is aka
Citric acid cycle
Where does glycolysis occur
Cytoplasm
What are the end products of glycolysis
2 Pyruvate
4 ATP (net)
2 NADH
What are the reactants of glycolysis
Gluclose
2 ATP
2 NAD+
Transition step moves what to where
Pyruvate to acetyl CoA from cytoplasm to mitochondria
What are the reactants of transition step
Pyruvate
3NAD+
Coenzyme A
What are the products of transition step
CO2
NADH
Acetyl CoA
Where does Krebs Cycle occur
Mitochondria
What are the reactants of Krebs cycle
1 Acetyl CoA
3 NAD+
1 FAD
1 ADP
What are the products of Krebs cycle
2 CO2
3 NADH
1 FADH_2
1 ATP
Coenzyme A
Where does the ETC occur
Between the inner matrix and intermembrane space of mitochondria
What are the reactants of ETC
Electron carriers NADH, FADH_2
O2
Protons
What are the products of ETC
Water
ATP
Proton gradient
NAD+
FAD
What is driven/moved by portion gradient
ATP Synthase
Theoretical ATP output of C/R per gouclose
36 ATP
Real life output from C/R per gluclose
30-32 ATP
What happens to C/R if there is no oxygen
Krebs cycle and ETC shut down
Glycolysis can keep going
What must happen to keep glycolysis going with a lack of oxygen
Fermentation
What are the products of fermentaion
ATP
NADH
Pyruvate
Lactate (animals)
CO2 and Ethanol (plants and yeast)
