Plant Structure Which part of a plant contains the male sex cell? Style Stamen Ova Pollen Style Stamen Ova Pollen 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? The redox reactions of electron transport Creatine phosphate ATP Glycolysis The redox reactions of electron transport Creatine phosphate ATP Glycolysis ANSWER DOWNLOAD EXAMIANS APP
Plant Structure Which of the following experimental results does not support Mitchell's chemiosmosis theory? Addition of dinitrophenol to isolated mitochondria was shown to inhibit electron transport, but had no effect on ATP synthesis Addition of dinitrophenol to isolated mitochondria during electron transport was shown to inhibit acidification of the medium An artificial proton gradient across the inner mitochondrial membrane drives ATP synthesis in the absence of electron transport Electron transport in isolated mitochondria was shown to result in acidification of the medium Addition of dinitrophenol to isolated mitochondria was shown to inhibit electron transport, but had no effect on ATP synthesis Addition of dinitrophenol to isolated mitochondria during electron transport was shown to inhibit acidification of the medium An artificial proton gradient across the inner mitochondrial membrane drives ATP synthesis in the absence of electron transport Electron transport in isolated mitochondria was shown to result in acidification of the medium ANSWER DOWNLOAD EXAMIANS APP
Plant Structure Which of the following observations is not used as evidence to support the concept of endosymbiotic origin of chloroplasts and mitochondria? Both strongly resemble prokaryotes, especially in size Both have their own DNA Both can live and function independently of the cell Both have their own ribosomes Both strongly resemble prokaryotes, especially in size Both have their own DNA Both can live and function independently of the cell Both have their own ribosomes 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 The rules governing oxidation and reduction apply only in vitro, and not in vivo None of these Electrons always go from reductants with high redox potentials to oxidants with low redox potentials Redox potentials are defined under standard conditions, and cellular conditions are typically not standard conditions The rules governing oxidation and reduction apply only in vitro, and not in vivo None of these Electrons always go from reductants with high redox potentials to oxidants with low redox potentials ANSWER DOWNLOAD EXAMIANS APP
Plant Structure Which of the following is not an electron carrier class in the electron transport chain? Flavoproteins Cytochrome c oxidase Cytochromes Iron - sulfur proteins Flavoproteins Cytochrome c oxidase Cytochromes Iron - sulfur proteins ANSWER DOWNLOAD EXAMIANS APP
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