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
Related Questions
Select the incorrect match w.r.t. intermediates of Krebs cycle and their products
Acetyl CoA – Carotenoids
Succinyl CoA – Pyrimidines
Oxaloacetic acid – Alkaloids
-Ketoglutaric acid – Amino acid synthesis
Maximum number of ATP is obtained from
Glucose
Palmitic acid
Malic acid
β-amino acid
In which of the following, reduction of NAD does not occur?
Isocitric acid→α-ketoglutaric acid
Malic acid →Oxaloacetic acid
Pyruvic acid →Acetyl coenzyme
Succinic acid →Fumaric acid
Identify the specific group, which carries out the following biochemical reaction:
Aspartic acid+α-ketoglutaric acid →Oxaloacetic acid+Glutamic acid
Synthetases
Peptidases
Transaminases
Lyases
Decarboxylation is involved in
Electron transport system
Glycolysis
Krebs’ cycle
Lactic acid fermentation
Fate of pyruvic acid during aerobic respiration is
Lactic acid fermentation
Alcoholic acid fermentation
Oxidative decarboxylation
Oxidative phosphorylation
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 is not a protein in ETS?
Ubiquinone
Cytochrome
Cytochrome oxidase
None of these
How many PGAL are produced by glycolysis of 3 molecules of glucose? How many ATP are released by respiration of these PGAL till formation of and ?
6 PGAL and 38 ATP
3 PGAL and 54 ATP
6 PGAL and 108 ATP
12 PGAL and 216 ATP
During conversion of pyruvic acid into acetyl Co-A, pyruvic acid is
Oxidized
Reduced
Isomerized
Condensed
