Plant Structure The cell membrane is made up of cellulose phosphoproteins phospholipids lipoproteins cellulose phosphoproteins phospholipids lipoproteins ANSWER DOWNLOAD EXAMIANS APP
Plant Structure Water content of active protoplasm is 70% 90% 40% 10% 70% 90% 40% 10% 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? None of these 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 The rules governing oxidation and reduction apply only in vitro, and not in vivo None of these 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 The rules governing oxidation and reduction apply only in vitro, and not in vivo ANSWER DOWNLOAD EXAMIANS APP
Plant Structure Which of the following experimental results does not support Mitchell's chemiosmosis theory? 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 during electron transport was shown to inhibit acidification of the medium Addition of dinitrophenol to isolated mitochondria was shown to inhibit electron transport, but had no effect on ATP synthesis 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 during electron transport was shown to inhibit acidification of the medium Addition of dinitrophenol to isolated mitochondria was shown to inhibit electron transport, but had no effect on ATP synthesis ANSWER DOWNLOAD EXAMIANS APP
Plant Structure Which is not true about a photon? It donates electron to reduce carbon dioxide to glucose It is trapped by photosynthetic unit The shorter the wavelength, the greater the energy of the photons It is a packet of light energy It donates electron to reduce carbon dioxide to glucose It is trapped by photosynthetic unit The shorter the wavelength, the greater the energy of the photons It is a packet of light energy ANSWER DOWNLOAD EXAMIANS APP
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? Ubiquinol (UQH2) Cytochrome c peroxidase Cytochrome c red Cytochrome c oxidase Ubiquinol (UQH2) Cytochrome c peroxidase Cytochrome c red Cytochrome c oxidase ANSWER DOWNLOAD EXAMIANS APP
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