10. Cell Signaling
Introduction to Cell Signaling
Multiple Choice
Multiple ChoiceWhen steroid hormones enter a cell by simple diffusion, they can be said to do what in terms of concentration?
A
Move up a concentration gradient and are nonpolar
B
Move up a concentration gradient and are polar
C
Move down a concentration gradient and are polar
D
Move through a channel, down a gradient, and are nonpolar
E
None of the listed responses is correct.
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