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

What is an animal that lives by preying on other animals

When in solution, a molecule that moves slowly across an artificial membrane moves rapidly across a plasma membrane. this molecule rapidly enters the cell regardless of whether its concentration is higher inside or outside the cell. using this information, which transport mechanism is most likely to be responsible for the movement of the molecule across a plasma membrane? view available hint(s)when in solution, a molecule that moves slowly across an artificial membrane moves rapidly across a plasma membrane. this molecule rapidly enters the cell regardless of whether its concentration is higher inside or outside the cell. using this information, which transport mechanism is most likely to be responsible for the movement of the molecule across a plasma membrane? active transportexocytosis

The normal shape of an enzyme is as shown in structure a. if the enzyme’s shape changes to that shown in structure b, what are two consequences of this change?