Which of the following bar charts describes a system that is in solution equilibrium?

   for 1 the answer is A -
the water rushes out of the cell to equalize the concentration. 

2 is D -
 the concentration outside the cell is the same as the concentration inside. 
hope it helps

I’m not exactly sure what your trying to ask, but if it’s how an organelle is similar to a body system or a part a nucleus is like a in function. but i don’t fully understand what you’re trying to ask