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.
Related Questions
Four respiratory enzymes are given below. Arrange them in increasing order of the carbon number of the substrates on which they act. I. Enolase II. Aconitase III. Fumarase IV. Alcohol Dehydrogenase
II, IV, III, I
IV, I, II, III
I, IV, III, II
IV, I, III, II
Which one is not correct about Krebs’ cycle?
It occurs in the mitochondrial matrix in eukaryotes.
It produces a large amount of ATP directly.
It requires oxygen indirectly.
It produces NADH and FADH2.
Total gain of ATP molecules during aerobic respiration of one molecule of glucose
36
38
40
34
What is the correct order of the stages of cellular respiration?
Krebs’ - Electron - Glycolysis cycle transport chain
Electron - Krebs’ cycle - Glycolysis transport chain
Glycolysis -Krebs’ cycle - Electron transport chain
Glycolysis - Electron transport chain - Krebs’ cycle
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
Four respiratory enzymes are given below. Arrange them in increasing order of the carbon number of the substrates on which they act. I. Enolase II. Aconitase III. Fumarase IV. Alcohol Dehydrogenase
II, IV, III, I
IV, I, II, III
I, IV, III, II
IV, I, III, II
Which process directly generates the proton gradient across the inner mitochondrial membrane during aerobic respiration?
Glycolysis
Krebs cycle
Electron transport chain
Substrate-level phosphorylation
Decarboxylation is involved in
Electron transport system
Glycolysis
Krebs’ cycle
Lactic acid fermentation
How many molecules of CO2 are released per glucose molecule during the complete oxidation of glucose in aerobic respiration?
2
4
6
8
Four respiratory enzymes are given below. Arrange them in increasing order of the carbon number of the substrates on which they act.
I.    Enolase
II.    Aconitase
III.    Fumarase
IV.    Alcohol Dehydrogenase
II, IV, III, I
IV, I, II, III
I, IV, III, II
IV, I, III, II
