Answer:
The correct answer is 156250 seconds.
Step-by-step explanation:
The size of a vesicle given is 20 micrometer.
The rate of ATP hydrolysis is 80 per second
Each of the ATP takes the vesicle 8 nm forward, that is,
8 nm = 8 * 10^-9 m
There is a need to transport a vesicle of 20 micrometer or 20 * 1000 nm
Thus, the required ATP will be = 20 * 1000 / 8 = 2500
1 ATP takes 1/80 sec, thus, 2500 ATP will take = 2500 * 1/80 = 31.25 seconds
Now, in order to travel 10 cm or 10 * 10000000 nm
The ATP required = 10 * 10000000 / 8
Time taken by each ATP = 1/80
Hence, time for 10 cm travel = 10 * 10000000/8 * 1/80 = 156250 seconds.