cell biology - transport mechanisms Flashcards
an ion moving directly through a cell membrane is an example of-
a) osmosis
b) simple diffusion
c) facilitated diffusion
d) active transport
b) simple diffusion
which of the following are more concentrated on the inside of the cell? select all that apply
a) calcium
b) sodium
c) chloride
d) potassium
d) potassium
water being pulled across a membrane by ions is an example of-
a) facilitated diffusion
b) active transport
c) simple diffusion
d) osmosis
d) osmosis
an ion that moves down its gradient and through a protein is an example of-
a) active transport
b) simple diffusion
c) osmosis
d) facilitated diffusion
d) facilitated diffusion
where does the energy come from that allows ions to move via active transport?
a) ATP
b) concentration gradient
c) protein pump
a) ATP