If the flow rate from the reservoir into the tree is larger than it is from the reservoir through the cut off branch and into the vacuum pump, what can you infer? The pressures are the same in the tree and the vacuum pump, and the difference in flow rate is due to the shorter branch connecting the reservoir to the vacuum pump. The pressure in the tree is lower than the pressure generated by the vacuum pump. The rate of ATP utilization in the tree is greater than what is needed to produce the same flow rate as a vacuum pump. The pressure in the tree is higher than the pressure generated by the vacuum pump.