What is the purpose of the proton motive force? A. Powers the phosphorylation of ATP to ADP. B. Powers the phosphorylation of ADP to ATP. C. Powers the production of high energy electron carriers. D. Powers the ability to generate more redox reactions.

Explanation:

The proton motive force; is the free energy released during the oxidation of NADH or FADH2  and it is  stored both as an electric potential and a proton concentration gradient across the inner membrane.  

The purpose of proton motive force is that the movement of protons back across the inner membrane, driven by this force, is used to the synthesis of ATP from ADP and Pi by  ATPase/ ATP synthase (F0F1 complex ).

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explanation:

weight of any object is given by

w = m*g

where m is mass of the object and g is the acceleration due to gravity.

for earth the value of g is 9.8 m/s^2 so

w=117.6 n m=12 g=?

117.6=12g => g=9.8 m/s^2

which is the force of gravity on earth.