Question 1. Fill in the blanks Most chemicals diffuse down their own gradient: Ions also diffuse based on the amount of charges in a space, also known as the electrochemical gradient. In a U-tube, osmosis will occur until the concentrations reach equilibrium or the gravitational pull on the elevated column equals the osmotic pressure of the water trying to move in. Describe the slope of a line showing the mass change of a dialysis bag (or egg or potato) that has reached equilibrium with its surrounding solution. A drug is being designed to be taken into target cells. Name 2 characteristics of the drug that should be considered to determine whether it would enter the cell: When one electrogenic ATP-powered pump results in a variety of different chemicals to enter a cell, it is usually evidence of active transport.

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