Problem:
Question 1: Chemotaxis:
Can cells move toward a low concentration gradient? If so, when does this occur? Explain thoroughly.
Question 2: The average male has 5X10^9 red blood cells/mL and 5.6 liters of blood in the body. If 1.1% of the cells are replaced each day, how many red blood cells would you expect to have been replaced after 365 days?
Show your calculations, but you do not need to write out any explanation.