Parts of the cell worksheet - Free Printable

Let's solve this step by step. The image is a labeled diagram of an animal cell, with several parts already named and others indicated by colored squares that need to be filled in.

We are told:
> "Fill in the coloured squares with the name of the signalled part."

The parts already labeled are:
- Nucleus (pink)
- Golgi body (yellow)
- Plasma membrane (blue)

Now, let’s identify the unlabeled parts based on their appearance and location in the animal cell:

---

1. Yellow square at the top right

This points to a small round structure with a dark dot inside — this is a lysosome.
✔ Answer: Lysosome

---

2. Green square on the right side

This points to a network of green folded membranes — this is the Endoplasmic Reticulum (ER). Since it's rough (has ribosomes on it), it's the Rough Endoplasmic Reticulum (RER).
✔ Answer: Rough Endoplasmic Reticulum

---

3. Pink square below the green one

This points to a pink, winding structure near the nucleus — this is the Smooth Endoplasmic Reticulum (SER). It lacks ribosomes and is involved in lipid synthesis.
✔ Answer: Smooth Endoplasmic Reticulum

---

4. Brown square on the left side

This points to tiny dots attached to the ER — these are Ribosomes. They are involved in protein synthesis.
✔ Answer: Ribosomes

---

5. Light yellow square at the bottom left

This points to a small, spherical structure with a dark center — this is a Mitochondrion (plural: mitochondria). It's the powerhouse of the cell.
✔ Answer: Mitochondrion

---

6. Beige/cream square at the bottom center

This points to the fluid inside the cell, surrounding the organelles — this is the Cytoplasm.
✔ Answer: Cytoplasm

---

Summary of Answers:

| Colored Square | Part Name |
|----------------|-----------|
| Yellow (top right) | Lysosome |
| Green (right) | Rough Endoplasmic Reticulum |
| Pink (below green) | Smooth Endoplasmic Reticulum |
| Brown (left) | Ribosomes |
| Light yellow (bottom left) | Mitochondrion |
| Beige (bottom center) | Cytoplasm |

---

Final Answer:

Fill the colored squares as follows:
- Yellow (top right) → Lysosome
- Green (right) → Rough Endoplasmic Reticulum
- Pink (below green) → Smooth Endoplasmic Reticulum
- Brown (left) → Ribosomes
- Light yellow (bottom left) → Mitochondrion
- Beige (bottom center) → Cytoplasm

✔ This completes the labeling of all parts of the animal cell!