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Chapter 9

9.4 Questions

QuestionAnswer
What happens during oxidative phosphorylation? Chemiosmosis couples electron transport to ATP synthesis`
What accounts for most of the energy extracted from food? NADH & FADH2
What do NADH & FADH2 donate their electrons to? the electron transport chain
Where is ETC located? In the inner membrane or, cristae of mitochondria.
What is the main component of the ETC? Proteins, specifically in multiprotein complexes.
What do carriers alternate when they give & receive electrons? they alternate reduced and oxidized states
What is the final electron acceptor? What does it form? O2. It forms H2O
ETC generates to ATP indirectly. T or F? False, and generates ATP directly through redox reactions.
Electron transfer in ETC pumps H+ ions from *** to ***? From the mitochondria to the inner membrane space.
How does H+ move back across the membrane? Passes through ATP synthase,
Comparable to water in a dam... energy is stored in H+
Where is ATP synthase imbedded? it is embedded in the membrane of the mitochondria.
What does ATP synthase use. to convert ADP to ATP? an ion's motion
Without oxygen, can we make ATP? NO
In what sequence does eenergy flow? glucose> NADH> ETC> proton motive force> ATP
About what percentage of glucose is transferred to ATP during respiration? 34%
About how much ATP is produced? about 32 ATP
Is the number of ATP produced exactly known? NO
Created by: akierah.w
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