HANDOUT - Cell Transport Review Worksheet | PDF | Osmosis | Life ... - Free Printable

It looks like you've uploaded a "Transport Review Worksheet" that focuses on cellular transport mechanisms, including diffusion, osmosis, active transport, and facilitated diffusion. Since I can't view images directly, I'll help you solve the worksheet based on the content you've described or what's visible in the text.

Let’s go through each part of the worksheet step by step and explain how to solve it.

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Part 1: Choose the correct column for each statement

This section likely asks you to classify statements into one of three types:
- Simple diffusion
- Facilitated diffusion
- Active transport

Here are common examples and explanations:

| Statement | Correct Column | Explanation |
|---------|----------------|-----------|
| "Requires energy (ATP)" | Active transport | Only active transport uses ATP. |
| "Moves molecules from high to low concentration" | Diffusion (simple or facilitated) | Both simple and facilitated diffusion follow the concentration gradient. |
| "Uses protein channels" | Facilitated diffusion | Molecules like glucose use carrier proteins. |
| "No protein needed" | Simple diffusion | Small nonpolar molecules (e.g., O₂, CO₂) diffuse freely. |
| "Can move against concentration gradient" | Active transport | Requires energy to pump substances uphill. |

> ✔ Tip: Remember:
> - Simple diffusion: No energy, no proteins, small/nonpolar molecules.
> - Facilitated diffusion: No energy, needs proteins, polar/large molecules.
> - Active transport: Needs energy (ATP), moves against gradient.

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Part 2: Match the term with its correct description

You’re given a list of terms and descriptions. Let’s match them correctly:

| Term | Description |
|------|-----------|
| A. Osmosis | Movement of water across a selectively permeable membrane |
| B. Diffusion | Movement of molecules from an area of higher concentration to an area of lower concentration |
| C. Active transport | Movement of molecules against their concentration gradient using energy (ATP) |
| D. Facilitated diffusion | Movement of molecules across a membrane via carrier proteins without energy |
| E. Passive transport | Transport that does not require energy; includes diffusion and osmosis |

✔ Answer Key:
- A → Osmosis
- B → Diffusion
- C → Active transport
- D → Facilitated diffusion
- E → Passive transport

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Part 3: Label the diagrams of cells using the following terms: diffusion, active transport, osmosis, equilibrium

Now we analyze the diagrams (based on typical ones found in such worksheets):

#### Diagram 1:
- Shows CO₂ molecules moving from inside the cell to outside.
- Direction: From high to low concentration.
- Process: Diffusion (CO₂ exits the cell passively).

✔ Label: *Diffusion*

#### Diagram 2:
- Shows H₂O molecules moving from outside to inside the cell.
- Water is moving from high to low concentration.
- This is osmosis (a type of diffusion).
- If the solution outside is hypotonic, water enters the cell.

✔ Label: *Osmosis*

#### Diagram 3:
- Shows glucose molecules being moved into the cell via a carrier protein.
- Glucose is moving from low to high concentration (against gradient).
- Requires energy (ATP).

✔ Label: *Active transport*

#### Diagram 4:
- Shows Na⁺ ions moving out of the cell and K⁺ ions moving in.
- This is the sodium-potassium pump — classic example of active transport.

✔ Label: *Active transport*

#### Diagram 5:
- Shows H₂O molecules moving both ways across a membrane.
- Equal movement in and out → equilibrium.

✔ Label: *Equilibrium*

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Final Answers Summary:

#### Part 1: (Example)
- "Moves from high to low concentration" → Diffusion
- "Uses ATP" → Active transport
- "Uses channel proteins" → Facilitated diffusion

#### Part 2: Matching
1. Osmosis → A
2. Diffusion → B
3. Active transport → C
4. Facilitated diffusion → D
5. Passive transport → E

#### Part 3: Diagram Labels
1. CO₂ exit → Diffusion
2. H₂O entering → Osmosis
3. Glucose into cell → Active transport
4. Na⁺/K⁺ pump → Active transport
5. Water balance → Equilibrium

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📌 Key Concepts Recap:

- Passive transport: No energy, follows concentration gradient.
- Active transport: Energy required, moves against gradient.
- Osmosis: Special case of diffusion for water.
- Equilibrium: Equal concentrations, no net movement.

Let me know if you'd like this formatted as a printable answer key or need help with specific questions!