Cell Structure exercise - Free Printable

Let's solve this step-by-step by identifying and labeling the parts of both animal and plant cells based on the provided diagrams and lists.

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Top Diagram: Animal Cell

This is an animal cell, identifiable by the absence of a cell wall, chloroplasts, and a large central vacuole. It has a nucleus and various organelles.

We are given the following list:
1. Nucleus
2. Nucleolus
3. Cytoplasm
4. Cell membrane
5. Lysosome
6. Endoplasmic Reticulum
7. Golgi Apparatus
8. Mitochondria
9. Ribosome

Now, let’s match each label to the correct structure in the diagram:

- Nucleus (1) – The large pink structure in the center with a yellow dot inside.
- Nucleolus (2) – The small yellow sphere inside the nucleus.
- Cytoplasm (3) – The blue gel-like substance filling the cell, surrounding all organelles.
- Cell membrane (4) – The outer boundary of the cell (thin line around the cell).
- Lysosome (5) – Small round yellow structures (often shown as vesicles).
- Endoplasmic Reticulum (6) – Green stacked structures; rough ER has ribosomes on it (small dots), smooth ER does not.
- Golgi Apparatus (7) – Orange, stack-like structure (often curved or flattened sacs).
- Mitochondria (8) – Pink oval structures with inner folds (cristae).
- Ribosome (9) – Tiny black dots on the rough ER or floating freely.

#### Labeling the Top Diagram (Animal Cell):

From the image:
- Top left: Nucleus
- Inside nucleus: Nucleolus
- Around nucleus: Endoplasmic Reticulum (green)
- Orange stack: Golgi Apparatus
- Pink oval: Mitochondria
- Yellow circles: Lysosome
- Thin lines: Ribosome
- Blue background: Cytoplasm
- Outer edge: Cell membrane

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Bottom Diagram: Plant Cell

This is a plant cell, identifiable by:
- A rigid cell wall (outer green layer)
- Chloroplasts (green oval structures)
- A large central vacuole (purple)

List provided:
1. Ribosome
2. Cytoplasm
3. Golgi Apparatus
4. Mitochondria
5. Chloroplasts
6. Endoplasmic Reticulum
7. Vacuole
8. Nucleus

Now, identify each part:

- Ribosome (1) – Tiny dots on the rough ER or free in cytoplasm.
- Cytoplasm (2) – Yellowish area inside the cell, between organelles.
- Golgi Apparatus (3) – Pink, stack-like structure near nucleus.
- Mitochondria (4) – Blue oval structures with internal folds.
- Chloroplasts (5) – Green oval structures with internal stacks (thylakoids).
- Endoplasmic Reticulum (6) – Network of membranes near nucleus.
- Vacuole (7) – Large purple central structure.
- Nucleus (8) – Dark orange/pink structure with nucleolus inside.

#### Labeling the Bottom Diagram (Plant Cell):

- Outermost layer: Cell wall (not in list, but visible)
- Large purple structure: Vacuole
- Green ovals: Chloroplasts
- Blue ovals: Mitochondria
- Pink stack: Golgi Apparatus
- Network near nucleus: Endoplasmic Reticulum
- Central nucleus: Nucleus
- Yellow area: Cytoplasm
- Tiny dots: Ribosome

Note: The cell wall is not listed, but it’s present in plant cells and should be recognized.

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✔ Final Answer:

#### Top (Animal Cell):

| Box Position | Label |
|--------------|-------|
| Top-left (nucleus) | Nucleus |
| Inside nucleus | Nucleolus |
| Green stacked structure near nucleus | Endoplasmic Reticulum |
| Orange stack | Golgi Apparatus |
| Pink oval with folds | Mitochondria |
| Yellow circle | Lysosome |
| Tiny dots on ER | Ribosome |
| Blue background | Cytoplasm |
| Outer edge | Cell membrane |

#### Bottom (Plant Cell):

| Box Position | Label |
|--------------|-------|
| Large central purple structure | Vacuole |
| Green oval structures | Chloroplasts |
| Blue oval structures | Mitochondria |
| Pink stack | Golgi Apparatus |
| Network near nucleus | Endoplasmic Reticulum |
| Central dark structure | Nucleus |
| Yellow area | Cytoplasm |
| Tiny dots | Ribosome |

> Note: The cell wall is visible but not in the list — it's a key feature of plant cells.

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🌟 Summary:

- Animal cells have no cell wall, chloroplasts, or large vacuole.
- Plant cells have a cell wall, chloroplasts, and a large central vacuole.
- Both share many organelles: nucleus, mitochondria, ER, Golgi, lysosomes (in animals), ribosomes, etc.

By matching the labeled parts to their shapes and locations, you can correctly identify each component.