Photosynthesis and Respiration
The cytochrome c oxidase complex

all of these
pumps protons out of the matrix space
accepts electrons from cyt c
donates four electrons to O2

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Photosynthesis and Respiration
Which of the following statements about energy metabolism is false?

All eukaryotic organisms carry out respiration in the presence of O2
Plants provide the water and CO2 that animals need to carry out respiration
All animals in some way rely on plants for their energy
The energy that powers living systems ultimately comes from the sun

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