Question

Which statement is true for ATP synthase but not V type vacuolar trasnporters?

1)Transport of protons up a concentration gradient

2)Is inhibited by low pH, in which case will operate in reverse

3)Utilizes free energy stored in ATP

4) Contains an integral membrane domain and ATP-binding subunit

5) Is only found in prokaryotic organisms

Answer 1

Ans:

option 1 is correct.

• ATP synthase or F ATPase is a proton channal that uses energy from "proton channel "to generate ATP.
• V ATPase or V type vacuolar transporter is a polar opposite to F ATPase because it is a" proton pump "that uses energy from ATP hydrolysis to generate proton gradient.
• option 2--- actually low ph triggers ATP synthase activity.
• option 3--actually It couples ADP and Pi to produce ATP.
• option 4--- Both of them are having same structure
• option 5--- It also found in eukaryotes.