Question

each of the beakers below contains different concentrations of saline (salt) solution with a cell inside. compare the concentrations outside and inside the cell to determine what type of solution the cell is in. then draw the direction that water would move (into or out of the cell).
9.
10.
below, there are three beakers labeled isotonic, hypotonic, and hypertonic. model what the relative concentrations of salt would look like by drawing salt as circles around the cells. (think: would there be a higher, lower, or equal concentration of salt?)
11.
isotonic
hypotonic
hypertonic

Explanation:

Step1: Determine solution type for beaker 9

The salt - concentration inside and outside the cell is 0.9%. In an isotonic solution, the solute concentration is the same inside and outside the cell. So, the solution in beaker 9 is isotonic. Since the concentrations are equal, there is no net movement of water.

Step2: Determine solution type for beaker 10

The salt - concentration outside the cell is 5% and inside is 0.9%. In a hypertonic solution, the solute concentration outside the cell is higher than inside. So, the solution in beaker 10 is hypertonic. Water will move out of the cell to balance the concentration gradient.

Step3: Model salt concentrations for beaker 11 (isotonic)

In an isotonic solution, the salt concentration inside and outside the cell is equal. So, draw an equal number of salt - circles inside and outside the cell.

Step4: Model salt concentrations for beaker 11 (hypotonic)

In a hypotonic solution, the salt concentration outside the cell is lower than inside. So, draw fewer salt - circles outside the cell compared to inside.

Step5: Model salt concentrations for beaker 11 (hypertonic)

In a hypertonic solution, the salt concentration outside the cell is higher than inside. So, draw more salt - circles outside the cell compared to inside.

Answer:

• Beaker 9: Isotonic, no net water movement
• Beaker 10: Hypertonic, water moves out of the cell
• Beaker 11 (isotonic): Equal number of salt - circles inside and outside the cell
• Beaker 11 (hypotonic): Fewer salt - circles outside the cell
• Beaker 11 (hypertonic): More salt - circles outside the cell