Question 1
Provide the basic physics definition of the term
fluid. What is bulk flow relative to body compartments? What types of matter move by bulk flow? What is fundamentally different in the behavior of these types of matter?
Question 2
When you eat a large meal and your body absorbs a lot of glucose and that makes its way to the interstitial fluid before going into the cell. 100% of the glucose should be absorbed into the cell from the interstitial fluid. Why does nearly all of the glucose enter the cell, rather than only half of it?
◦ The cells make ATP so fast, they use up all the glucose as soon as it enters the cell.
◦ Insulin forces glucose into the cell against a concentration gradient.
◦ It is moved by active transport.
◦ It is modified by the cell, so there is still more glucose on the outside of the cell than inside it.