I%20received%20the%20following%20questions%20relevant%20to%20Chs%204%20and%205

I%20received%20the%20following%20questions%20relevant%20to%20Chs%204%20and%205

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I received the following questions relevant to Chs 4 and 5, and I post the answers here because I thought perhaps many of you would have similar questions. 1) How is ATPase different from ATP synthase, and are they both reversible enzymes? ATP synthase in the mitochondria operates similarly to some ATPases in cell organelles. They are both reversible enzymes, but only under special conditions. The synthase normally operates only to make ATP while the ATPases normally operate only to break down ATP to generate some type of work. ATP synthase in mitochondrial inner membranes operates to make ATP under normal conditions by passing H from the inter-mitochondrial space (between outer and inner membranes of mitochondria) through a channel and spinning the proteins of the synthase to generate ATP in mitochondrial matrix. ATPase in cell organelles operates to transport H ions by using energy from ATP hydrolysis to spin proteins that look very similar to the synthase proteins to pump H ions from the cytosol to the organelle
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I%20received%20the%20following%20questions%20relevant%20to%20Chs%204%20and%205

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