When the required direction of transport is opposed to concentration levels, a cell (1)_______ expend energy to force (2)_____ across its membrane.

(1)
a. will
b. will not

(2)
a. ions
b. metals
c. minerals

Question

When the required direction of transport is opposed to concentration levels, a cell (1)_______ expend energy to force (2)_____ across its membrane.


(1) 
a. will
b. will not

(2)
a. ions
b. metals
c. minerals

anonymous · Answer

I think it's a. will, and a. ions. Thanks for all your help... I'm beginning to think that nobody in the Biology section is alive-- quite ironic.