The enzyme is found in bacterial plasma membrane, in thylakoid membrane (chloroplast ATP synthase) and in inner mitochondrial membrane. The main function of the enzyme is ATP production.
In this case, the terminal velocity increases to about 320 km/h (200 mph or 90 m/s), which is almost the terminal velocity of the peregrine falcon diving down on its prey.
It is estimated that the human body will reach 99% of terminal velocity after falling 1,880 feet (573 meters) which takes anywhere from 10-14 seconds. With normal posture and normal atmospheric pressure, this is a speed between 117 and 125 miles per hour, or approximately 54 meters per second.