Cell with 20% glucose inside is placed in a solution with 10% glucose outside, prompting questions about osmosis, water movement, and cell behavior.

Let's analyze the image and answer each question step by step based on the information provided.

Given:

- Outside the cell (in the surrounding solution): 10% glucose
- Inside the cell: 20% glucose

We assume that:
- The only solute is glucose.
- The rest of the solution is water.
- The cell membrane is selectively permeable (allows water to pass, but not glucose).

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Step 1: Determine percentages of glucose and water inside and outside the cell

#### 1. What is the % of glucose outside the cell?
✔ Answer: 10%

This is directly given in the diagram.

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#### 2. What is the % of water outside the cell?
Since the total percentage must add up to 100%, and glucose is 10%, then:

Water = 100% - 10% = 90%

✔ Answer: 90%

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#### 3. What is the % of water inside the cell?
Inside the cell, glucose is 20%, so:

Water = 100% - 20% = 80%

✔ Answer: 80%

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Now consider osmosis:

Osmosis is the movement of water across a semi-permeable membrane from an area of lower solute concentration to an area of higher solute concentration.

- Outside: 10% glucose → lower solute concentration
- Inside: 20% glucose → higher solute concentration

So water will move into the cell to balance the concentration.

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#### 4. Will osmosis occur?
✔ Answer: Yes

Because there is a difference in solute concentration (glucose), water will move.

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#### 5. If so, which way will water move (into or out of the cell)?
Water moves from low solute concentration to high solute concentration.

- Outside: 10% glucose → low solute
- Inside: 20% glucose → high solute

So water moves into the cell.

✔ Answer: Into the cell

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#### 6. Will the cell swell or shrink?
Since water enters the cell, it will swell.

✔ Answer: Swell

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#### 7. The cell is in what type of solution (hypertonic, hypotonic, isotonic)?

Let’s define:
- Hypotonic: Lower solute concentration than inside the cell → water enters → cell swells
- Hypertonic: Higher solute concentration than inside the cell → water leaves → cell shrinks
- Isotonic: Equal solute concentration → no net movement

Here, the outside solution has 10% glucose, the inside has 20% glucose → outside is less concentrated → hypotonic solution.

✔ Answer: Hypotonic

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✔ Final Answers:

| Question | Answer |
|--------|--------|
| 1. What is the % of glucose outside the cell? | 10% |
| 2. What is the % of water outside the cell? | 90% |
| 3. What is the % of water inside the cell? | 80% |
| 4. Will osmosis occur? | Yes |
| 5. If so, which way will water move? | Into the cell |
| 6. Will the cell swell or shrink? | Swell |
| 7. The cell is in what type of solution? | Hypotonic |

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🔍 Summary:

The cell is in a hypotonic solution (lower solute concentration outside), so water moves into the cell via osmosis, causing the cell to swell.