F1 atpase

If the plasma membrane was permeable to the same degree to both Na+ and K+, then they would not have to use the ATPase. And since the concentration gradient of both ions are of the same magnitude, then I would expect the ions to move across the membrane at pretty much the same ...

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... in the ETS to their ground state where oxygen is there to accept them to form water. Energy released by electrons is used by the giant protein ATPase to form the energy currency ATP. A total of 36 or 38 moles of ATP are produced per mole of glucose in aerobic respiration. It was a simple a ...

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... permeable to the same degree to both Na+ and K+ the two ions could not move across the membane at the same rate! In the second step of Na+/K+ ATPase 3 Na+ ions move out of the cell into the extracellular space reducing an ATP molecule to ADP. In turn, in the 4th step of the NA+/K+ ATPase, ...

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"I mean can these two reactions be catalyzed by the same enzyme, which we just refer to as ATPase:" If I am not badly mistaken, enzymes that can do ATP hydrolysis (ATP ==> ADP + Pi) are usually poor catalysts for ADP hydrolysis. But as noted above, under appropriate ...

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Could anyone help me to describe the activation of myosin? Is it when ATPase in the myosin head hydrolyzes ATP to ADP and P which provides energy needed to return myosin head to its prestroke high-energy? Or it is when ATP attaches to myosin head and detach ...

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