Cell Biology worksheet for labeling parts of animal and plant cells and identifying their functions.

Let's solve this Cell Biology worksheet step by step. The task involves:

1. Labeling the parts of an animal cell and a plant cell.
2. Completing a table with the functions of each cell structure.
3. Shading in green those structures that are only found in plant cells.

---

✔ Step 1: Label the Diagrams

#### 1. Animal Cell
The diagram shows:
- A large, dark circle (nucleus)
- Small oval shapes (mitochondria)
- A membrane around the cell
- Some small dots (possibly ribosomes or other organelles)

From the arrows:

1. Nucleus – the control center of the cell.
2. Mitochondrion – site of cellular respiration (energy production).
3. Cytoplasm – gel-like substance where organelles float.
4. Cell membrane – controls what enters and exits the cell.

✔ So, labels are:
1. Nucleus
2. Mitochondrion
3. Cytoplasm
4. Cell membrane

> *(Note: The diagram may show more than four parts, but only four are labeled. We’ll assume these are the main ones.)*

---

#### 2. Plant Cell
This diagram includes:
- A nucleus
- Mitochondria
- Chloroplasts (green oval structures)
- A large central vacuole
- Cell wall (outer rigid layer)
- Cell membrane (inside the cell wall)
- Cytoplasm

Arrows point to:

1. Nucleus
2. Chloroplast
3. Cell wall
4. Vacuole
5. Cell membrane
6. Cytoplasm
7. Mitochondrion

✔ Labels:
1. Nucleus
2. Chloroplast
3. Cell wall
4. Vacuole
5. Cell membrane
6. Cytoplasm
7. Mitochondrion

> *(Note: The order might vary slightly depending on arrow placement, but these are the correct structures.)*

---

✔ Step 2: Complete the Table – Functions of Cell Parts

| Cell Structure | Function (job) |
|---------------------|----------------|
| Nucleus | Controls cell activities; stores DNA; directs protein synthesis. |
| Cytoplasm | Gel-like substance that holds organelles; site of many chemical reactions. |
| Cell surface membrane | Regulates movement of substances in and out of the cell. |
| Mitochondria | Site of aerobic respiration; produces energy (ATP). |
| Cell wall | Provides structural support and protection; found only in plants. |
| Chloroplast | Site of photosynthesis; converts light energy into chemical energy (only in plants). |
| Vacuole | Stores water, ions, and waste; maintains turgor pressure (larger in plant cells). |

---

✔ Step 3: Shade in Green – Structures Only Found in Plant Cells

These are:
- Cell wall
- Chloroplast
- Large central vacuole (though vacuoles exist in animal cells too, they are much smaller and not permanent like in plant cells)

So, shade the following rows in green:
- Cell wall
- Chloroplast
- Vacuole

> 💡 Note: While some animal cells have small vacuoles, the large central vacuole is a defining feature of plant cells.

---

✔ Final Answer Summary

#### Diagram Labels:

Animal Cell:
1. Nucleus
2. Mitochondrion
3. Cytoplasm
4. Cell membrane

Plant Cell:
1. Nucleus
2. Chloroplast
3. Cell wall
4. Vacuole
5. Cell membrane
6. Cytoplasm
7. Mitochondrion

#### Function Table:

| Cell Structure | Function |
|-----------------------|--------|
| Nucleus | Controls cell activities; contains DNA |
| Cytoplasm | Holds organelles; site of reactions |
| Cell surface membrane | Controls movement in/out of cell |
| Mitochondria | Produces energy (ATP) via respiration |
| Cell wall | Provides support and protection (plant only) |
| Chloroplast | Performs photosynthesis (plant only) |
| Vacuole | Stores materials; maintains turgor (plant only) |

👉 Shade in green: Cell wall, Chloroplast, Vacuole

---

✔ This completes the worksheet correctly! Let me know if you'd like a printable version or a visual guide.