ATP SYNTHASE High (H\') 35. The figure above represents a rough endoplasmic reti

Question

ATP SYNTHASE High (H') 35. The figure above represents a rough endoplasmic reticulum. Which of the following best describes ATP the role of the structure labeled Y? (A) Structure Y contributes the raw materials (B) Structure Y rackages proteins for export (C) Structure Y is the location where proteins are (D) Structure Y contains enzymes that cut and ADP P required for the synthesis of proteins from the cell synthesized. activate proteins Low [H'] 34. Which of the following questions will best direct an investigation of the mechanism of ATP synthase? (A) What is the source of the inorganic phosphate that is used to generate ATP from ADP? (B) Is the pbosphorylation of ADP by ATP synthase dependent on the formation of a proton gradient? (C) Can ATP synthase use the energy released by phosphorylation of ADP to pump protons against a concentration gradient? (D) Can oxidative phosphorylation be uncoupled from the electron transport chain?

Explanation / Answer

34. (B) Is the phosphorylation of ADP by ATP synthase dependent on the proton gradient.

Generation of ATP by ATP synthase is energetically unfavourable reaction and so complete by proton gradient across the membrane

35. (C) Structure Y is the location where proteins are synthesized .

On Rough Endoplasmic reticulum , ribosomes are found which synthesize the protein from m-RNA

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