OBJECTIVE LIFE SCIENCE
CELL BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Conformational hypothesis was postulated by
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P. D. Boyer
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E. C. Slater
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Peter Mitchell
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None of the above
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Explanation:
Detailed explanation-1: -Using chemical methods Paul Boyer proposed that ATP synthase is like a cylinder with alternating alpha and beta subunits. An asymmetrical gamma subunit in the middle of the cylinder causes changes in the structure of the beta subunits when it rotates (100 r.p.s.).
Detailed explanation-2: -Mitchell postulates that the diffusion of ions other than protons (or OH-ions) down the electrical gradient across the coupling membrane, and their accumulation in osmotically disruptive concentra-tions in the internal phase, must be counteracted by specific extrusion in exchange for protons or OH-ions.
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