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
Which of the metabolites is common to respiration mediated breakdown of fats, carbohydrates and proteins?
Glucose-6-phosphate
Fructose, 6-bisphosphate
Pyruvic acid
Acetyl Co-A
Which of the following is a 4-carbon compound?
Oxaloacetic acid
Phosphoglyceric acid
Ribulose bisphosphate
Phosphoenol pyruvate
Which of the following statements regarding mitochondria is incorrect?
Outer membrane is permeable to monomers of carbohydrates, fats and proteins.
Enzymes of electron transport are embedded in outer membrane.
Inner membrane is convoluted with infoldings.
Mitochondrial matrix contains single circular DNA molecule and ribosomes.
Which of these statements is incorrect ?
Oxidative phosphorylation takes place in outer mitochondrial membrane.
Enzymes of TCA cycle are present in mitochondrial matrix.
Glycolysis operates as long as it is supplied with NAD that can pick up hydrogen atoms.
Glycolysis occurs in cytosoal
Which of these are respiratory poisons or inhibitors of electron transport chain?
Cyanide, Rotenone, Carbon Monoxide
Penicillin, Streptomycin, Tetracycline
Insulin, Glucagon, Epinephrine
Sucrose, Lactose, Fructose
Following is the sequence of carboxylic acids in Krebs cyclei) OAA = oxaloacetic acidii) CA = Citric acidiii) SA = Succinic acidiv) FA = Fumaric acidv) ICA = Iso-citric acidvi) MA = Malic acidFrom the above list, pick out the carboxylic acids, which do not participate at all in the biological oxidation.
OAA and CA
SA and FA
ICA and MA
None
Which of the following statements regarding mitochondria is incorrect?
Outer membrane is permeable to monomers of carbohydrates, fats and proteins.
Enzymes of electron transport are embedded in outer membrane.
Inner membrane is convoluted with infoldings.
Mitochondrial matrix contains single circular DNA molecule and ribosomes.
All of the given are reactants of TCA cycle except
Succinyl CoA
Fumaric acid
Citric acid
Pyruvic acid
Calculation of ATP gain for every glucose is made on certain assumptions. Choose the correct option in accordance with the statement given above
The pathway functioning is sequential and orderly
One substrate forms the reactant for the others
TCA cycle and ETS pathway follow one after another
All of the above
Five gram mole of glucose on complete oxidation releases
3430 kcal of energy
343 kcal of energy
2020 kcal of energy
430 kcal of energy
