Molecules can move around in the air or in a solution.

Question

i. A solution is a mixture of molecules. A liquid portion called a
_____________ and the substance dissolved in it is called the
______________________.
Figure 2-17. Parts of a Solution17
b. Molecules are going to move across cell membranes based on their
concentrations.
c. The term refers to
the relationship between the concentrations of solutes inside the cell and
the solutes outside the cell.
d. When energy is not required, the movement is termed _____________
transport.
e. When energy is required, the movement is termed
transport.
17 Source: Wikimedia Commons: Maxmath122

Answer 1

i. A solution is a mixture of molecules. A liquid portion called a solvent and the substance dissolved in it is called the solute.

c. The term refers to the relationship between the concentrations of solutes inside the cell and the solutes outside the cell, which is termed tonicity.

d. When energy is not required, the movement is termed passive transport.

e. When energy is required, the movement is termed active transport.