A chemical travels into a cell via a carrier protein. If that process required no ATP, what can you say about the relative concentration of the chemical inside and outside of the
cell?

for example, no new evidence will demonstrate that the earth does not orbit around the sun (heliocentric theory), or that living things are not made of cells (cell theory), that matter is not composed of atoms, or that the surface of the earth is not divided into solid plates that have moved over geological timescales .

answer axon terminal,synaptic cleft; and motor end plate;