A human needs about 2500 calories of energy per day. You could supply this energy (ignoring nutritional sanity) by eating 600 grams of starch, digesting it to glucose, absorbing it, and then respiring it. To respire 600 grams of starch, you need about one gram of oxygen for every gram of starch digested to glucose. If you average 10 breaths a minute for 24 hours, how many grams of oxygen do your lungs need to transfer to your blood with each breath