Question

* Concerning transport of ions across cell membranes, which of the
following is not true:
a. secondary active transport requires energy
b. simple diffusion occurs down the concentration gradient
c. facilitated diffusion occurs against the electrical gradient
d. active transport is mediated by a protein carrier
e. secondary active transport has a transport maximum capacity
​

Answer 1

Answer:

c. facilitated diffusion occurs against the electrical gradient

Explanation:

Is not true

Answer 2

a) secondary active transport requires energy.(true).

b) simple diffusion occurs down the concentration gradient.( false).

c) faciliated diffusion occur against the electrical gradient.(false)

d) active transport is mediated by a protein carrier.(false).

e) secondary active transport has a transport maximum capacity. (false).