Plant Structure If complex III were incorporated into an artificial lipid vesicle in order to demonstrate it's proton translocating ability in isolation, which of the following would be an appropriate electron donor? Cytochrome c oxidase Cytochrome c peroxidase Ubiquinol (UQH2) Cytochrome c red Cytochrome c oxidase Cytochrome c peroxidase Ubiquinol (UQH2) Cytochrome c red ANSWER DOWNLOAD EXAMIANS APP
Plant Structure The mitochondria were known in the nineteenth century to be osmotically active on the basis of evidence that mitochondria are surrounded by a semi permeable membrane the mitochondrial matrix is hypertonic to the cellular cytoplasm the mitochondrial matrix is hypotonic to the cellular cytoplasm mitochondria were derived from a symbiotic bacterium mitochondria are surrounded by a semi permeable membrane the mitochondrial matrix is hypertonic to the cellular cytoplasm the mitochondrial matrix is hypotonic to the cellular cytoplasm mitochondria were derived from a symbiotic bacterium ANSWER DOWNLOAD EXAMIANS APP
Plant Structure What is the source of free energy (ΔG) for moving protons out of mitochondria against their concentration and electrical gradients? Glycolysis The redox reactions of electron transport ATP Creatine phosphate Glycolysis The redox reactions of electron transport ATP Creatine phosphate ANSWER DOWNLOAD EXAMIANS APP
Plant Structure Why do some redox reactions in cells result in the transfer of electrons from a reductant with a higher standard redox potential to an oxidant with a lower standard redox potential? Redox potentials are defined under standard conditions, and cellular conditions are typically not standard conditions Electrons always go from reductants with high redox potentials to oxidants with low redox potentials None of these The rules governing oxidation and reduction apply only in vitro, and not in vivo Redox potentials are defined under standard conditions, and cellular conditions are typically not standard conditions Electrons always go from reductants with high redox potentials to oxidants with low redox potentials None of these The rules governing oxidation and reduction apply only in vitro, and not in vivo ANSWER DOWNLOAD EXAMIANS APP
Plant Structure A cell without cell wall is called apoplast protoplast none of these symplast apoplast protoplast none of these symplast ANSWER DOWNLOAD EXAMIANS APP
Plant Structure Any system that is not at equilibrium is thermodynamically unstable, although it may be kinetically stable is kinetically unstable, although it may be thermodynamically stable requires an enzyme to reach equilibrium is rushing toward equilibrium at a very rapid rate is thermodynamically unstable, although it may be kinetically stable is kinetically unstable, although it may be thermodynamically stable requires an enzyme to reach equilibrium is rushing toward equilibrium at a very rapid rate ANSWER DOWNLOAD EXAMIANS APP
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