Plant and Animal Cells online exercise - Free Printable

Let's solve the problem step by step using the image and the instructions provided.

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1. Label the organelles in both plant and animal cells

We are given a list of organelles:

- Mitochondria
- Large Vacuole
- Small Vacuole
- Cytoplasm
- Cell Membrane
- Nucleus
- Chloroplasts
- Cell Wall

Now, let’s identify and label each structure in the two diagrams.

#### Picture 1 (Left – Plant Cell):
- Green outer boundary: This is the Cell Wall (rigid structure unique to plant cells).
- Inner membrane just inside cell wall: Cell Membrane
- Large blue structure in the center: Large Vacuole (characteristic of plant cells)
- Green oval structures: Chloroplasts (site of photosynthesis)
- Red oval structures with inner folds: Mitochondria (produce energy)
- Purple round structure with nucleolus: Nucleus (controls cell activities)
- Pink folded structure: Endoplasmic Reticulum (not listed, but not needed here)
- Blue area surrounding organelles: Cytoplasm

#### Picture 2 (Right – Animal Cell):
- Outer boundary: Cell Membrane (no cell wall in animal cells)
- Small light blue circles: Small Vacuoles (smaller and more numerous than in plant cells)
- Green oval structures: Mitochondria
- Purple round structure: Nucleus
- Blue network-like structure: Golgi apparatus (not listed, so ignore for labeling)
- Cytoplasm: The pink background
- No chloroplasts or cell wall present

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Labeling the Diagrams:

#### Plant Cell (Left):
- Top left arrow → Chloroplasts
- Middle top → Nucleus
- Right side → Cell Wall
- Bottom right → Mitochondria
- Bottom left → Chloroplasts
- Center large blue → Large Vacuole
- Inside nucleus → Nucleus
- Outer green border → Cell Wall
- Inner boundary → Cell Membrane
- Background → Cytoplasm

#### Animal Cell (Right):
- Top left → Small Vacuole
- Top right → Cell Membrane
- Middle → Nucleus
- Bottom left → Mitochondria
- Bottom right → Mitochondria
- Background → Cytoplasm

> Note: Some labels may be repeated — that's allowed.

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2. The type of cell in picture 1 is:

✔ Plant Cell

> Reason: It has a cell wall, large central vacuole, and chloroplasts — all features unique to plant cells.

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3. The type of cell in picture 2 is:

✔ Animal Cell

> Reason: It lacks a cell wall and chloroplasts, has a small vacuole, and a flexible cell membrane — typical of animal cells.

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4. List the organelles that are only found in PLANT cells.

✔ Chloroplasts – Site of photosynthesis; only in plant cells.

✔ Cell Wall – Made of cellulose; provides structural support; absent in animal cells.

✔ Large Central Vacuole – Stores water and maintains turgor pressure; much larger in plant cells than in animal cells.

> Note: While some animal cells have vacuoles, they are typically small and temporary. The large central vacuole is a defining feature of mature plant cells.

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✔ Final Answers:

#### 1. Labels:
- Plant Cell:
- Green outer layer: Cell Wall
- Inner membrane: Cell Membrane
- Large blue structure: Large Vacuole
- Green ovals: Chloroplasts
- Red ovals: Mitochondria
- Purple circle: Nucleus
- Pink background: Cytoplasm

- Animal Cell:
- Outer boundary: Cell Membrane
- Small light blue dots: Small Vacuole
- Red ovals: Mitochondria
- Purple circle: Nucleus
- Pink background: Cytoplasm

#### 2. Picture 1: Plant Cell

#### 3. Picture 2: Animal Cell

#### 4. Organelles only in plant cells:
- Chloroplasts
- Cell Wall
- Large Vacuole

> These three are exclusive to plant cells (or at least significantly different in presence and function).

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Let me know if you'd like this formatted as a labeled diagram or printable answer sheet!