Question 1
The movement of water across the plasma membrane can be described by all of the following
except ________.
◦ passive membrane transport
◦ simple diffusion
◦ facilitated diffusion through aquaporins
◦ carrier-mediated facilitated diffusion
Question 2
If active transport establishes a concentration gradient with the use of ATP, then the concentration gradient can be looked at as ________.
◦ potential energy that can be harnessed when molecules passively diffuse down the concentration gradient
◦ a byproduct of active transport that will be alleviated by pinocytosis
◦ unwanted pressure that will be alleviated by channel mediated facilitated diffusion
◦ an unusable byproduct of active transport that will simply diffuse away