Animal Cell Organelles worksheet - Free Printable

Let's solve this step-by-step by identifying each labeled part of the cell in the diagram using the Word Bank provided.

---

Step 1: Understand the Diagram

This is a diagram of an animal cell, as it does not have a cell wall, chloroplasts, or a large central vacuole (which are features of plant cells). The structures shown are typical of an animal cell.

We’ll go through each number and match it to the correct organelle based on its shape and location.

---

Step 2: Identify Each Structure

#### 1.
- Points to a structure with many small dots (ribosomes) on a network of membranes.
- This is the Rough Endoplasmic Reticulum (Rough ER).
✔ Answer: Rough ER

#### 2.
- Points to a small round structure attached to the Rough ER.
- These are Ribosomes — they are often found on the surface of the Rough ER.
✔ Answer: Ribosomes

#### 3.
- Points to an oval-shaped structure with inner folded membranes (cristae).
- This is a Mitochondrion — the powerhouse of the cell.
✔ Answer: Mitochondria

#### 4.
- Points to a network of membranes without ribosomes.
- This is the Smooth Endoplasmic Reticulum (Smooth ER).
✔ Answer: Smooth ER

#### 5.
- Points to the outer boundary of the cell.
- This is the Cell membrane.
✔ Answer: Cell membrane

#### 6.
- Points to the large central structure with a dark dot inside (nucleolus).
- This is the Nucleus — the control center of the cell.
✔ Answer: Nucleus

#### 7.
- Points to the gel-like substance filling the cell, where organelles float.
- This is the Cytoplasm.
✔ Answer: Cytoplasm

#### 8.
- Points to a stack of flattened sacs with vesicles.
- This is the Golgi Apparatus — involved in modifying, sorting, and packaging proteins.
✔ Answer: Golgi Apparatus

---

✔ Final Answers:

| Number | Answer |
|--------|----------------------|
| 1. | Rough ER |
| 2. | Ribosomes |
| 3. | Mitochondria |
| 4. | Smooth ER |
| 5. | Cell membrane |
| 6. | Nucleus |
| 7. | Cytoplasm |
| 8. | Golgi Apparatus |

---

🧠 Quick Review:

- Rough ER: Has ribosomes; makes proteins.
- Smooth ER: No ribosomes; involved in lipid synthesis and detoxification.
- Mitochondria: Produces energy (ATP).
- Ribosomes: Site of protein synthesis.
- Nucleus: Contains DNA; controls cell activities.
- Cytoplasm: Gel-like fluid holding organelles.
- Cell membrane: Controls what enters/exits the cell.
- Golgi Apparatus: Modifies and packages proteins for transport.

---

✔ All answers are now correctly matched!