21. water concentration is highest: in the cell in the solution they are equal 22. the solution is: hypertonic isotonic hypotonic 23. draw an arrow to show the movement of water. (color water dark blue) (keep same) (color water white) 24. the cell will: swell shrink stay the same size beaker #7 25. water concentration is highest: in the cell in the solution they are equal 26. the solution is: hypertonic isotonic hypotonic (color water dark blue) (keep same) (color water white) 27. draw an arrow to show the movement of water. 28. the cell will: swell shrink stay the same size

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Accepted Answer

### Question 21 (Water concentration is highest: )
# Brief Explanations:
To determine where water concentration is highest, we compare the water percentages. In the cell, water is 86% (first diagram) or 72% (second diagram). In the solution, water is 70% (first) or 72% (second). For the first diagram (Beaker #7? Maybe a typo, but focusing on the first cell: cell has 86% water, solution has 70% water. So water concentration is highest in the cell. For the second cell and solution, both have 72% water, so they are equal? Wait, the first cell (left) has 86% water, solution has 70% water. So for the first set (left), water concentration is highest in the cell. For the second (right), cell and solution have 72% water, so equal. But the question is "Water concentration is highest: In the cell, In the solution, They are equal". So we analyze the diagrams. Left cell: 86% water, solution: 70% water. So water concentration is higher in the cell. Right cell: 72% water, solution: 72% water, so equal. But the options are "In the cell", "In the solution", "They are equal". So we check the diagrams. The left diagram: cell has 86% water, solution has 70% water. So water concentration is highest in the cell. The right diagram: cell and solution both 72% water, so equal. But the question is probably about the first diagram (Beaker #7's cell). So the answer is "In the cell" (for the first cell) or "They are equal" (for the second). But looking at the options, the first part (question 21) has options: In the cell, In the solution, They are equal. So we compare water percentages. Water percentage = 100% - solute percentage. Left cell: 86% water (14% solute), solution: 70% water (30% solute? Wait, the left solution says "70% Water" (so 30% solute), cell has 86% water (14% solute). So water concentration (water percentage) is higher in the cell (86% > 70%). So water concentration is highest in the cell.
# Answer: In the cell

### Question 22 (The solution is: Hypertonic, Isotonic, Hypotonic)
# Brief Explanations:
Tonicity: Hypertonic solution has higher solute concentration than cell, Hypotonic has lower, Isotonic equal. Left solution: solute is 30% (100 - 70), cell solute is 14%. So solution has higher solute (30% > 14%), so solution is hypertonic? Wait no: hypertonic solution has more solute, so water moves out of cell. Wait, solute concentration: solution (left) has 30% solute, cell has 14% solute. So solution is hypertonic (higher solute), cell is hypotonic relative to solution. Wait, tonicity is based on solute concentration relative to cell. So if solution has more solute (hypertonic), cell has less solute (hypotonic to solution). So the solution is hypertonic (since solute in solution (30%) > solute in cell (14%)). For the right diagram: solution has 28% solute, cell has 28% solute. So isotonic. But question 22 is about which solution? The left diagram (Beaker #7's solution). So solution solute is 30% (70% water), cell solute 14% (86% water). So solution has higher solute, so it's hypertonic.
# Answer: Hypertonic

### Question 23 (Draw an arrow to show water movement)
# Brief Explanations:
Osmosis: water moves from high water concentration (low solute) to low water concentration (high solute). Left cell: 86% water (low solute), solution: 70% water (high solute). So water moves from cell (high water) to solution (low water)? Wait no: wait, water moves to area of higher solute concentration (since solute attracts water). Wait, solute concentration in solution (30%) is higher than cell (14%), so water moves out of cell (from cell to solution). So arrow points from cell to solution. For the right diagram: cell and solution have same solute (28%), so water moves equally, arrow can be bidirectional or no net movement. But for the left diagram (Beaker #7), water moves out of cell (from cell to solution). So draw an arrow from the cell (inside the purple cell) to the solution (outside the cell, in the beaker).
# Answer: Draw an arrow from the cell (where water concentration is higher, 86% water) to the solution (where water concentration is lower, 70% water), indicating water moving out of the cell (since solution is hypertonic, solute concentration higher in solution, so water moves to solution).

### Question 24 (The cell will: Swell, Shrink, Stay the same size)
# Brief Explanations:
If water moves out of the cell (as in question 23, solution is hypertonic, water leaves cell), the cell will lose water and shrink. Because when water moves out, the cell's volume decreases, so it shrinks. If water moved in, it would swell; if equal, stay same. Here, solution is hypertonic, water leaves cell, so cell shrinks? Wait no: wait, left cell: 86% water, solution 70% water. So water concentration is higher in cell, so water moves from cell (high water) to solution (low water) (osmosis: water moves to lower water concentration, which is higher solute concentration). So cell loses water, so it shrinks? Wait, no: wait, when a cell is in a hypertonic solution (solution has more solute), water leaves the cell, so the cell shrinks (plasmolysis in plant cells, crenation in animal cells). So the cell will shrink? Wait but the options: Swell, Shrink, Stay the same size. Wait, maybe I mixed up. Wait, in the left diagram, cell has 86% water, solution has 70% water. So water moves from cell (high water) to solution (low water). So cell loses water, so it shrinks. But wait, the right diagram: cell and solution both 72% water, so water moves equally, cell stays same. But question 24 is about which cell? The left cell (Beaker #7's cell). So if water moves out, cell shrinks. But wait, the options for question 24: Swell, Shrink, Stay the same size. Wait, maybe I made a mistake. Wait, let's re-express: solute concentration in solution (left) is 30% (100-70), cell is 14%. So solution is hypertonic (higher solute), so water moves out of cell (from cell to solution). So cell loses water, so it shrinks. But wait, the right cell: solution and cell both 28% solute, so isotonic, cell stays same. But the question is about the cell in the first diagram (left). So the cell will shrink? Wait, but the option "Shrink" is there. Wait, but maybe I messed up. Wait, no: if solution is hypertonic (more solute), cell is hypotonic, so water moves out, cell shrinks. So answer is Shrink? Wait, but the options for question 24: Swell, Shrink, Stay the same size. Wait, maybe the diagram is different. Wait, the right diagram: cell has 72% water (28% solute), solution has 72% water (28% solute). So isotonic, cell stays same. But the left diagram: cell 86% water (14% solute), solution 70% water (30% solute). So solution is hypertonic, cell is hypotonic, water moves out, cell shrinks. So the cell will shrink? But the option "Shrink" is available. Wait, but the user's options for question 24: Swell, Shrink, Stay the same size. So the answer is Shrink (for the left cell) or Stay the same (for the right). But the diagram on the right has cell and solution both 72% water, so isotonic, cell stays same. But the left diagram: cell 86% water, solution 70% water, so water moves out, cell shrinks. So depending on the diagram, but the question is probably about the left (Beaker #7) cell. So the cell will shrink.
# Answer: Shrink

### Question 25 (Water concentration is highest: In the cell, In the solution, They are equal)
# Brief Explanations:
As in question 21, for the left diagram (cell 86% water, solution 70% water), water concentration is highest in the cell. For the right (cell 72% water, solution 72% water), they are equal. So we check the diagrams. The left cell has 86% water, solution 70%, so highest in cell. The right, equal. So answer is "In the cell" (for left) or "They are equal" (for right). But the question is "Water concentration is highest: ", so we compare. Water percentage: cell (left) 86%, solution 70% → highest in cell. Cell (right) 72%, solution 72% → equal. So the answer depends on the diagram. Assuming the first diagram (left), answer is "In the cell".
# Answer: In the cell

### Question 26 (The solution is: Hypertonic, Isotonic, Hypotonic)
# Brief Explanations:
Tonicity: solution's solute vs cell's solute. Left solution: 30% solute (70% water), cell: 14% solute (86% water). Solution has more solute → hypertonic. Right solution: 28% solute, cell: 28% solute → isotonic. So for the left diagram (Beaker #7), solution is hypertonic. For the right, isotonic. So answer is "Hypertonic" (left) or "Isotonic" (right). Assuming left diagram, answer is Hypertonic.
# Answer: Hypertonic

### Question 27 (Draw an arrow to show water movement)
# Brief Explanations:
Osmosis: water moves from high water concentration (cell, 86% water) to low water concentration (solution, 70% water) → arrow from cell to solution. For the right diagram, equal water, so bidirectional or no net, but left diagram: arrow out of cell.
# Answer: Draw an arrow from the cell (inside the purple cell) to the surrounding solution (in the beaker), indicating water moving out of the cell (since solution is hypertonic, solute concentration higher in solution, so water moves to solution).

### Question 28 (The cell will: Swell, Shrink, Stay the same size)
# Brief Explanations:
If water moves out of the cell (as in question 27, solution is hypertonic), the cell loses water and shrinks. If in isotonic solution, stays same; hypotonic, swells. Here, solution is hypertonic, so cell shrinks.
# Answer: Shrink

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Explanation:

Question 21 (Water concentration is highest: )

Answer:

Question 22 (The solution is: Hypertonic, Isotonic, Hypotonic)