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Reinforcement: Cell Structures worksheet with a labeled diagram of a cell and a list of components to identify.

Diagram showing the structure of a cell with labeled parts including nucleus, mitochondria, ribosomes, and cell membrane.

Diagram showing the structure of a cell with labeled parts including nucleus, mitochondria, ribosomes, and cell membrane.

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Show Answer Key & Explanations Step-by-step solution for: Reinforcement: Label the Structures of the Cell
Let’s go through each clue one by one and match it to the correct cell part from the word bank.

We’re looking at animal and plant cells, so some parts are only in plants (like chloroplasts), and others are in both.

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1. Surrounds the cell and controls the movement of substances in and out.
→ That’s the cell membrane. It’s like a gatekeeper for the cell.

2. Watery material that contains cell organelles.
→ This is the cytoplasm — it’s the jelly-like stuff inside the cell where everything floats.

3. Contains the cell's genetic material (DNA).
→ That’s the nucleus — it’s the control center with DNA inside.

4. Transports proteins and other materials throughout the cell (can be smooth or rough).
→ That’s the endoplasmic reticulum — think of it as highways inside the cell. Rough has ribosomes, smooth doesn’t.

5. Site of protein synthesis, many located on the ER.
→ Those are ribosomes — they build proteins. Some float free, some stick to the ER.

6. Contains enzymes that break down materials (digestion).
→ That’s the lysosome — it’s like the stomach of the cell, breaking down waste.

7. Harvests energy for the cell - "powerhouse of the cell".
→ That’s the mitochondria — makes energy (ATP) for the cell.

8. Packages and secretes products of the cell.
→ That’s the Golgi body — it packages things up to send out, like a post office.

9. Secreted by the Golgi body, they carry products out of the cell.
→ These are vesicles — little bubbles that carry stuff around or out of the cell.

10. Found in the nucleus, makes ribosomes.
→ That’s the nucleolus — it’s inside the nucleus and builds ribosomes.

11. Hairlike structures found on the surface of some cells.
→ Those are cilia — tiny hairs that help move things or help the cell move.

12. A long, tail-like structure used for locomotion.
→ That’s the flagella — like a whip tail that helps sperm or some bacteria swim.

13. Structures within the cytoplasm that support and shape cell (part of cytoskeleton).
→ Those are microtubules — they’re like scaffolding holding the cell’s shape.

14. Fluid filled container used for storage; large in plant cells.
→ That’s the vacuole — stores water, food, waste. Big in plants!

15. Carries out photosynthesis in plant cells.
→ That’s the chloroplast — uses sunlight to make food (only in plants).

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Now let’s write the answers in order:

Final Answer:
1. cell membrane
2. cytoplasm
3. nucleus
4. endoplasmic reticulum
5. ribosomes
6. lysosomes
7. mitochondria
8. Golgi body
9. vesicles
10. nucleolus
11. cilia
12. flagella
13. microtubules
14. vacuole
15. chloroplast
Parent Tip: Review the logic above to help your child master the concept of cell biology worksheet.
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