Question

Draw a diagram of F1 particle. With the help of diagra
illustrate the major phase of respiration occurring ​

Answer 1

Explanation:

The F1 component of ATP synthase is the part that actually synthesizes ATP from ADP + Pi. Simply put, the F1 component squeezes ADP + Pi together until they form ATP, then releases the ATP.

Each ATP synthase (or FoF1 complex) is composed of an Fo component (which spans the membrane and functions as a proton translocator) and an F1 component (a “knob” or “cap” that does not contact the membrane and functions as an ATP synthase, but can function as an ATPase if the direction of the proton flow through the FoF1 complex is reversed). The flow of protons through the Fo component causes the gamma subunit to rotate relative to the fixed beta subunits of the “cap”. Because the gamma subunit is asymmetric and makes physical contact with portions of all three of the beta subunits of the cap, its rotation causes the beta subunits to undergo changes in conformational states in a cyclic manner. Each of the three possible states – open, low, and tight - has a different affinity for ATP, ADP, and Pi. Thus ADP and Pi bind loosely in the open state, then more tightly in the low state, then they are held tightly and combine to form ATP in the tight state, then the ATP is released when the open state is again reached, followed by binding of ADP and Pi, which starts the next iteration of O-L-T cycle.