Cell Transport Review Worksheet featuring questions on isotonic, hypotonic, and hypertonic solutions, and matching terms with their descriptions related to active transport, diffusion, and endocytosis.

Let's go through the Cell Transport Review Worksheet step by step and solve each section with explanations.

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Part 1: Complete the table by checking the correct column for each statement

We are given a table with three types of solutions: Isotonic, Hypotonic, and Hypertonic, and statements about their effects on cells.

#### Definitions:
- Isotonic solution: Equal solute concentration inside and outside the cell → no net movement of water.
- Hypotonic solution: Lower solute concentration outside the cell → water enters the cell → cell swells.
- Hypertonic solution: Higher solute concentration outside the cell → water leaves the cell → cell shrinks.

Now, evaluate each statement:

| Statement | Isotonic | Hypotonic | Hypertonic |
|---------|----------|-----------|------------|
| Causes a cell to swell | ✘ | ✔ | ✘ |
| Doesn't change the shape of a cell | ✔ | ✘ | ✘ |
| Causes osmosis | ✔ | ✔ | ✔ |
| Causes a cell to shrink | ✘ | ✘ | ✔ |

✔ Explanation:
- Swelling occurs in hypotonic solutions (water enters).
- No shape change happens in isotonic (balance).
- Osmosis happens in all solutions — it’s the movement of water across a membrane due to concentration differences.
- Shrinking occurs in hypertonic solutions (water leaves).

So the corrected table should be:

| Statement | Isotonic | Hypotonic | Hypertonic |
|---------|----------|-----------|------------|
| Causes a cell to swell | | ✔ | |
| Doesn't change the shape of a cell | ✔ | | |
| Causes osmosis | ✔ | ✔ | ✔ |
| Causes a cell to shrink | | | ✔ |

> Note: The original worksheet already has some Xs marked. Let’s assume they were meant to be checkmarks. The ones shown seem mostly correct, but "Causes osmosis" should have ✔ in all three columns.

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Part 2: Match the term with its correct description

Terms:
a. energy
b. facilitated diffusion
c. endocytosis
d. passive transport
e. active transport
f. exocytosis
g. carrier protein
h. channel protein

Now match:

1. ___h___ Transport protein that provides a tube-like opening in the plasma membrane through which particles can diffuse
→ Channel protein (h) – forms pores for ions/molecules to pass through.

2. ___a___ Is used during active transport but not passive transport
→ Energy (a) – active transport requires energy (ATP), passive does not.

3. ___c___ Process by which a cell takes in material by forming a vacuole around it
→ Endocytosis (c) – engulfing materials into vesicles.

4. ___d___ Particle movement from an area of higher concentration to an area of lower concentration
→ Passive transport (d) – moves down concentration gradient without energy.

5. ___f___ Process by which a cell expels wastes from a vacuole
→ Exocytosis (f) – vesicle fuses with membrane to release contents.

6. ___b___ A form of passive transport that uses transport proteins
→ Facilitated diffusion (b) – passive, uses proteins (carrier or channel).

7. ___e___ Particle movement from an area of lower concentration to an area of higher concentration
→ Active transport (e) – against gradient, needs energy.

8. ___g___ Transport protein that changes shape when a particle binds with it
→ Carrier protein (g) – undergoes conformational change to move molecules.

✔ All matches are correct as provided.

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Part 3: Match the term with its correct description

Terms:
a. transport protein
b. active transport
c. diffusion
d. passive transport
e. osmosis
f. endocytosis
g. exocytosis
h. equilibrium

Now match:

1. ___e___ The diffusion of water through a cell membrane
→ Osmosis (e) – specifically water movement.

2. ___d___ The movement of substances through the cell membrane without the use of cellular energy
→ Passive transport (d) – no ATP needed.

3. ___a___ Used to help substances enter or exit the cell membrane
→ Transport protein (a) – like channels or carriers.

4. ___b___ When energy is required to move materials through a cell membrane
→ Active transport (b) – needs ATP.

5. ___h___ When the molecules of one substance are spread evenly throughout another substance to become balanced
→ Equilibrium (h) – equal distribution.

6. ___g___ A vacuole membrane fuses (becomes a part of) the cell membrane and the contents are released
→ Exocytosis (g) – vesicle releases contents outside.

✔ All matches are correct.

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Final Answers Summary

#### Part 1: Table Corrections
| Statement | Isotonic | Hypotonic | Hypertonic |
|---------|----------|-----------|------------|
| Causes a cell to swell | | ✔ | |
| Doesn't change the shape of a cell | ✔ | | |
| Causes osmosis | ✔ | ✔ | ✔ |
| Causes a cell to shrink | | | ✔ |

> Note: If you’re filling in checkboxes, make sure to place ✔ appropriately.

#### Part 2: Matching (already correct)
1. h
2. a
3. c
4. d
5. f
6. b
7. e
8. g

#### Part 3: Matching (already correct)
1. e
2. d
3. a
4. b
5. h
6. g

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✔ Final Notes:

- This worksheet reviews key concepts in cell transport: osmosis, tonicity, passive vs. active transport, and bulk transport (endocytosis/exocytosis).
- Remember:
- Passive transport = no energy, down gradient (diffusion, facilitated diffusion, osmosis).
- Active transport = energy required, against gradient.
- Endocytosis = bring in; exocytosis = push out.

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