Structure and Functions of the Parts of a Cell - Part One Label ... - Free Printable

Actually, there is no “NO NUMBER 7” in the diagram — that appears to be a mistake or placeholder in the table. Let’s carefully examine the image and correct the labeling.

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✔ Step-by-Step Solution:

Looking at the diagram of the animal cell, we can identify each labeled part by its structure and position. Here’s the correct matching of numbers to organelles with their functions:

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#### 🔢 Correct Labeling & Functions:

| Number | Organelle Name | Function |
|--------|-----------------------------|--------------------------------------------------------------------------|
| 1 | Mitochondria | Powerhouse; produces ATP via cellular respiration |
| 2 | Centrioles | Aid in cell division (form spindle fibers during mitosis) |
| 3 | Lysosome | Breaks down waste materials and cellular debris (digestive enzymes) |
| 4 | Cytoplasm | Gel-like substance that suspends organelles; site of many metabolic reactions |
| 5 | Nucleolus | Synthesizes ribosomal RNA (rRNA) and assembles ribosomes |
| 6 | Nucleus | Control center of the cell; contains DNA and regulates growth/metabolism |
| 7 | ✘ Not present in diagram | *There is no label #7 in the image — this is likely an error.* |
| 8 | Cilia | Move fluids or particles across cell surface; aid in movement |
| 9 | Rough Endoplasmic Reticulum | Synthesizes, folds, and modifies proteins (has ribosomes attached) |
| 10 | Golgi Apparatus | Modifies, sorts, and packages proteins/lipids into vesicles for export |
| 11 | Cytoskeleton | Provides structural support; helps organelles move; involved in cell shape and division |
| 12 | Golgi Vesicle | Transport vesicles carrying proteins from Golgi to plasma membrane or other destinations |
| 13 | Ribosome | Site of protein synthesis (can be free in cytoplasm or bound to RER) |
| 14 | Smooth Endoplasmic Reticulum | Synthesizes lipids and steroids; detoxifies drugs/poisons; stores calcium |

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📝 Notes on Errors in the Original Table:

- Number 7 is missing in the diagram — there is no structure labeled “7”.
- The function listed for “Cytoplasm” (label 4) in the original table says it “protects genetic material” — this is inaccurate. That’s the role of the nucleus. Cytoplasm *suspends* organelles and is the site of many metabolic reactions.
- The function for “Nucleolus” (label 5) should emphasize ribosome assembly, not just “makes RNA” — though it does make rRNA, its main function is assembling ribosomal subunits.
- The function for “Cilia” (label 8) is correctly described as moving cells or transporting fluid/material past them.
- The function for “Rough ER” (label 9) is accurate — synthesizes and exports proteins.
- The function for “Golgi Apparatus” (label 10) is mostly correct — it modifies, sorts, and packages proteins/lipids.
- The function for “Cytoskeleton” (label 11) is correct — helps organelles move and maintains cell shape.
- The function for “Golgi Vesicle” (label 12) is correct — transports sorted proteins to their destinations.
- The function for “Ribosome” (label 13) is correct — protein synthesis.
- The function for “Smooth ER” (label 14) is correct — lipid/steroid synthesis and detoxification.

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✔ Final Answer (Corrected Table):

| PART NAME | FUNCTION |
|--------------------------------|--------------------------------------------------------------------------|
| 1. Mitochondria | Powerhouse; produces ATP |
| 2. Centrioles | Aids in cell division |
| 3. Lysosome | Breaks down materials in the cell |
| 4. Cytoplasm | Suspends organelles; site of metabolic reactions |
| 5. Nucleolus | Makes rRNA and assembles ribosomes |
| 6. Nucleus | Control center of the cell (growth and metabolism) |
| 7. — | *(No structure labeled #7 in diagram)* |
| 8. Cilia | Move a cell or group of cells or help transport fluid/materials past them|
| 9. Rough Endoplasmic Reticulum | Produce, secrete and export proteins |
| 10. Golgi Apparatus | Transporting, modifying, and packaging proteins/lipids into vesicles |
| 11. Cytoskeleton | Helps organelles move from place to place; maintains cell shape |
| 12. Golgi Vesicle | Sorting and directing proteins to proper destinations |
| 13. Ribosome | Produce proteins (protein synthesis) |
| 14. Smooth Endoplasmic Reticulum | Storage organelle; creation and storage of lipids and steroids |

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✔ Conclusion: The only error in the original table is the inclusion of “NO NUMBER 7”, which doesn’t exist in the diagram. All other labels are correct if minor clarifications are made (especially for cytoplasm and nucleolus). You can confidently submit this corrected version for full credit.