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During aerobic respiration, the complete oxidation of one molecule of glucose theoretically yields 38 ATP. However, the actual yield is often lower. Which of the following is NOT a significant contributor to this reduced ATP yield?
Incomplete oxidation of glucose in the cytoplasm
Leakage of protons across the inner mitochondrial membrane
Utilization of the proton gradient for processes other than ATP synthesis
Variations in the efficiency of the electron transport chain
If the inner mitochondrial membrane were to become permeable to protons, what would be the MOST immediate consequence on ATP synthesis?
ATP synthesis would increase due to increased proton flow.
ATP synthesis would stop because the proton gradient would dissipate.
ATP synthesis would be unaffected as it relies on substrate-level phosphorylation.
ATP synthesis would decrease, but some ATP would still be produced by glycolysis.
During aerobic respiration, the maximum number of ATP molecules are generated during which stage?
Glycolysis
Krebs cycle
Oxidative phosphorylation
Link reaction
How does the role of in cellular respiration relate to energy production?
It directly phosphorylates ADP to ATP.
It acts as the final electron acceptor in the electron transport chain.
It transports electrons to the electron transport chain, contributing to ATP synthesis.
It provides the energy for substrate-level phosphorylation.
All of the following occur within the mitochondria EXCEPT:
Glycolysis
Krebs cycle
Electron transport chain
ATP synthesis
All of the following are true about the Krebs cycle EXCEPT:
It occurs in the mitochondrial matrix.
It generates reducing equivalents like NADH and FADH2.
It is a part of aerobic respiration.
It directly produces ATP.
In which part of mitochondria does ATP synthesis occur?
Outer mitochondrial membrane
Intermembrane space
Inner mitochondrial membrane
Mitochondrial matrix
In which part of mitochondria does ATP synthesis occur?
Cristae
Inner membrane of mitochondria
Where is ATP synthesised in glycolysis?
When 1, 3 di PGA is changed into 3PGA
When glucose is converted into glucose-6-phosphate
Both (a) and (b)
When, 1, 6 diphosphate is broken in triose phosphate
Where is ATP synthesised in glycolysis?
When 1, 3 di PGA is changed into 3PGA
When glucose is converted into glucose-6-phosphate
Both (a) and (b)
When, 1, 6 diphosphate is broken in triose phosphate
