Comparing Diffusion, Osmosis and Active Transport | Beyond - Free Printable

Let's solve the task step by step.

We are given a Venn diagram with three overlapping circles labeled:

- Diffusion
- Osmosis
- Active Transport

Our goal is to sort the following statements into the correct sections of the Venn diagram based on whether they apply to diffusion, osmosis, active transport, or combinations thereof.

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Statements to Sort:

1. movement of particles
2. involves transport of dissolved solutes
3. involves transport of water only
4. from an area of high solute concentration to an area of low solute concentration
5. from a dilute solution to a concentrated solution
6. down a concentration gradient
7. against a concentration gradient
8. across a partially permeable membrane
9. passive process (no energy required)
10. requires energy from respiration

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Step 1: Understand the Concepts

#### Diffusion:
- Movement of particles from an area of high concentration to an area of low concentration.
- Passive process (does not require energy).
- Occurs across a partially permeable membrane.
- Applies to any substance (solutes, gases, etc.).

#### Osmosis:
- A special type of diffusion involving water only.
- Water moves from a region of low solute concentration to a region of high solute concentration (i.e., from dilute to concentrated solution).
- Also passive and occurs across a partially permeable membrane.

> So, osmosis is a subset of diffusion, specifically for water.

#### Active Transport:
- Movement of substances against a concentration gradient (from low to high concentration).
- Requires energy (ATP) from respiration.
- Occurs across a partially permeable membrane.
- Can involve ions or molecules.

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Step 2: Analyze Each Statement

Now, let’s assign each statement to the correct section(s):

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1. movement of particles
→ This applies to all three: diffusion, osmosis, and active transport.
✔ All three circles (center intersection)

2. involves transport of dissolved solutes
→ Diffusion and active transport move solutes; osmosis moves only water.
So: Diffusion & Active Transport (not osmosis)
✔ Diffusion and Active Transport (overlap)

3. involves transport of water only
→ Only osmosis is defined as the movement of water.
✔ Osmosis only

4. from an area of high solute concentration to an area of low solute concentration
→ This describes diffusion and osmosis (water moves toward high solute).
But note: osmosis is from *dilute* to *concentrated*, which is equivalent to saying "from low solute to high solute".
Wait — this statement says "high to low", which is incorrect for osmosis.

Clarify:
- Osmosis: water moves from dilute (low solute) → concentrated (high solute)
- So "from high solute to low solute" is not correct for osmosis.

Therefore, this statement applies only to diffusion (for solutes moving down gradient).

✔ Diffusion only

5. from a dilute solution to a concentrated solution
→ This describes osmosis (water moving into concentrated solution).
Also applies to active transport if it's moving solutes into a concentrated area? No — wait.

Wait:
- Osmosis: water moves into concentrated solution → yes.
- Active transport: can move substances into concentrated areas → yes.
- But diffusion does not go from dilute to concentrated.

So this applies to:
- Osmosis (water)
- Active Transport (solutes)

But not diffusion.

✔ Osmosis and Active Transport (overlap)

6. down a concentration gradient
→ Diffusion and osmosis occur down the gradient (passive).
- Active transport goes against the gradient.

So: Diffusion and Osmosis
✔ Diffusion and Osmosis (overlap)

7. against a concentration gradient
→ Only active transport does this.
✔ Active Transport only

8. across a partially permeable membrane
→ All three processes occur across a semi-permeable membrane.
✔ All three circles (center intersection)

9. passive process (no energy required)
→ Diffusion and osmosis are passive.
Active transport is not passive.
✔ Diffusion and Osmosis (overlap)

10. requires energy from respiration
→ Only active transport requires energy.
✔ Active Transport only

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Final Placement in Venn Diagram

Let’s now place each statement in the correct region.

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#### Only Diffusion:
- movement of particles ✔ (but also in others — so not here)
- involves transport of dissolved solutes ✔ (but also in active transport — overlap)
- from an area of high solute concentration to an area of low solute concentration ✔
- down a concentration gradient ✔ (but also osmosis — overlap)

Wait — we need to find what's only in diffusion.

Actually, none of the statements are only in diffusion.

Let’s re-check:

- Diffusion only:
- None — because all diffusion-related things are shared with osmosis (since osmosis is a type of diffusion).

Wait! That's key: Osmosis is a type of diffusion.

So:
- Osmosis ⊂ Diffusion
- Therefore, anything true of osmosis is also true of diffusion.

So the only statements that belong only to Diffusion must be those that are true for diffusion but not for osmosis.

Let’s re-evaluate:

#### Only Diffusion:
- involves transport of dissolved solutes → Yes, diffusion includes solutes. Osmosis is only water → so this is not in osmosis.
✔ So this belongs to Diffusion only (but not osmosis), but active transport also transports solutes → so it's in Diffusion and Active Transport, not only diffusion.

Wait — we need to use Venn logic:

- Diffusion only: True for diffusion, false for osmosis and active transport.
- Osmosis only: True for osmosis, false for diffusion and active transport.
- Active Transport only: True for active transport, false for others.
- Diffusion & Osmosis: True for both, false for active transport.
- Diffusion & Active Transport: True for both, false for osmosis.
- Osmosis & Active Transport: True for both, false for diffusion.
- All three: True for all.

Now let’s go one by one.

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Final Assignments:

1. movement of particles
→ All three: diffusion, osmosis, active transport
✔ Center (all three)

2. involves transport of dissolved solutes
→ Diffusion (yes), Osmosis (no — only water), Active Transport (yes)
So: Diffusion and Active Transport
✔ Diffusion ∩ Active Transport

3. involves transport of water only
→ Only osmosis
✔ Osmosis only

4. from an area of high solute concentration to an area of low solute concentration
→ This is diffusion for solutes (e.g., glucose diffusing out of cell).
→ Osmosis: water moves from low to high solute, so this direction is wrong for osmosis.
→ Active transport: can go either way, but typically against gradient.
So this is only diffusion
✔ Diffusion only

5. from a dilute solution to a concentrated solution
→ Osmosis: water moves into concentrated solution → yes
→ Active transport: can move solutes into concentrated areas → yes
→ Diffusion: no, diffusion goes from high to low
So: Osmosis and Active Transport
✔ Osmosis ∩ Active Transport

6. down a concentration gradient
→ Diffusion: yes
→ Osmosis: yes (water moves down its gradient)
→ Active transport: no
So: Diffusion and Osmosis
✔ Diffusion ∩ Osmosis

7. against a concentration gradient
→ Only active transport
✔ Active Transport only

8. across a partially permeable membrane
→ All three
✔ All three

9. passive process (no energy required)
→ Diffusion: yes
→ Osmosis: yes
→ Active transport: no
So: Diffusion and Osmosis
✔ Diffusion ∩ Osmosis

10. requires energy from respiration
→ Only active transport
✔ Active Transport only

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Summary Table:

| Statement | Region |
|---------|--------|
| 1. movement of particles | All three |
| 2. involves transport of dissolved solutes | Diffusion & Active Transport |
| 3. involves transport of water only | Osmosis only |
| 4. from high to low solute concentration | Diffusion only |
| 5. from dilute to concentrated solution | Osmosis & Active Transport |
| 6. down a concentration gradient | Diffusion & Osmosis |
| 7. against a concentration gradient | Active Transport only |
| 8. across a partially permeable membrane | All three |
| 9. passive process | Diffusion & Osmosis |
| 10. requires energy from respiration | Active Transport only |

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Final Answer (How to Fill the Diagram):

- Center (All Three): 1, 8
- Diffusion & Osmosis: 6, 9
- Diffusion & Active Transport: 2
- Osmosis & Active Transport: 5
- Diffusion only: 4
- Osmosis only: 3
- Active Transport only: 7, 10

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✔ Answer Completed

You would place the numbers accordingly in the Venn diagram:

- All three: 1, 8
- Diffusion & Osmosis: 6, 9
- Diffusion & Active Transport: 2
- Osmosis & Active Transport: 5
- Diffusion only: 4
- Osmosis only: 3
- Active Transport only: 7, 10

This correctly reflects the biological relationships between diffusion, osmosis, and active transport.