Some Diseases Result from Defective Transport Across the Membrane

Multiple Choice

Some diseases result from defective transport across the membrane. For example, cystic fibrosis results when a chloride ion transporter does not function. Which of the following is affected when this transporter does NOT function?

A) the chloride concentration gradient
B) the electrical gradient of the cell
C) both the chloride concentration gradient and the electrical gradient of the cell
D) neither the chloride gradient nor the electrical gradient of the cell