PSL 425 Final Exam Multiple Choice UPDATED ACTUAL QUESTIONS AND CORRECT ANSWERS

PSL 425 Final Exam Multiple Choice UPDATED
ACTUAL QUESTIONS AND CORRECT ANSWERS

, What is the driving force that The electrochemical gradient
determines the passive transport of
solutes across a permeable
membrane?


When a substance is uncharged, as Only when the concentration is equal on the two
in the case of glucose, when can sides of the membrane
equilibrium occur?


If neither the chemical nor the The two terms are equal but of opposite sign
electrical term in the
electrochemical potential energy
difference equation is zero, when
can equilibrium occur?


Which of the following values is The membrane voltage
unnecessary when finding the
equilibrium potential of an ion using
the Nernst equation?


What does the Nernst equation The equilibrium potential
predict for any concentration
gradient of a particular ion across a
membrane?


If movement of a substance across Noncoupled transport
the membrane is not directly
coupled to the movement of any
other solute or to any other chemical
reaction, this transport is called?


How is the net flux best determined The sum of influx and efflux
in terms of influx and efflux?