Bioengineering and biomedical engineering merge the disciplines of engineering, biology, and medicine to create techniques and devices that are based on an understanding of living systems and serve the objective of improving the quality of human and animal life.
Weight of 1 US Gallon of water = approx. 8.35 lb (about 3.785 kg). Weight of 1 Imperial gallon (i.e. UK measure) of water weighs 10 pounds (4.536 kg) by definition, at a specified temperature and pressure.
Gallons measure volume and grams measure mass (weight, in common parlance) so they're not interchangeable. It's a bit like asking what your height is in pounds. Water (the usual standard) weighs 1 kilogram per liter so a gallon, which is about 3.78 liters, would weigh 3780 gm. However a gallon of cooking oil would weigh less because it's less dense, while a gallon of mercury would weigh a heck of a lot more. 10 people found this useful.