When the protein gramicidin is intergrated into a membrane, an H+ channel forms

Question

When the protein gramicidin is intergrated into a membrane, an H+ channel forms and the membrane becomes very permable to protons. If gramicidin is added to actively respiring muscle cell, how would it affecct the rates of electron transport, proton pumping and atp aynthesis in oxidative phosphorylation? (assume that gramicidin does not affect production of nadh and fadh2 during the early stages of cell. respiration)

When the protein gramicidin is integrated into a membrane, an H channel forms and the membrane becomes very permeable to protons (H ions). If gramicidin is added to an actively respiring muscle cell, how would it affect the rates of electron transport, proton pumping, and ATP synthesis in oxidative phosphorylation? (A that gramicidin does not affect the production of NADH and FADH2 during the early stages of cellular respiration.) Sort the labels into the correct bin according to the effect that gramicidin would have on each process Reset Help Tate of ATP synthesis Proton pumping rate Crate of Oygen uptake Celectron transport rate Osize of the proton gradient remains the same decreases (or goes to zero) increases

Explanation / Answer

Ans:

When the protein gramicidin is integrated into a membrane, H+ channels forms and the membrane becomes very permeable to proton. If gramicidin is added to actively respiring musle cell ,its effect on rate of electron transport, proton pumping and ATP synthesis in oxidative phosphorylation:

-Proton pumping rate, Electron transport rate, Rate of oxygen uptake: Remains the same.

-Rate of ATP synthesis, Size of proton gradient:Decreases or goes to zero.

-Nothing:Increases.

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