Educational worksheet identifying cell organelles and their functions.
Cell Organelles Worksheet with labeled structures and functions for educational use.
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Show Answer Key & Explanations
Step-by-step solution for: Cell Organelles Worksheet KEY | PDF | Cell (Biology) | Cell Membrane
▼
Show Answer Key & Explanations
Step-by-step solution for: Cell Organelles Worksheet KEY | PDF | Cell (Biology) | Cell Membrane
You’ve uploaded a “Cell Organelles Worksheet” that asks you to match structure/function descriptions (left column) with the correct cell part/organelle (right column). The worksheet is partially filled — some answers are already written in, and others need to be completed.
Let’s go through each numbered item one by one, explain what it does, and assign the correct organelle. We’ll also verify the pre-filled answers.
---
→ Vacuole
✔️ Correctly filled. Vacuoles store water, ions, nutrients, and waste in plant and fungal cells; animal cells have smaller vacuoles.
---
→ Chloroplast
✘ *Incorrect!* This description refers to thylakoids inside chloroplasts, but the phrase “stacked, flattened sacs” specifically describes grana (which are stacks of thylakoids). However, since “chloroplast” is the larger organelle containing them, and the worksheet says “(plants only)”, it’s likely acceptable. But technically, this is a bit misleading — better to say “contains stacked thylakoids.”
➡️ Still, for middle/high school level, Chloroplast is acceptable here.
---
→ Ribosomes
✔️ Correct. Ribosomes read mRNA and assemble amino acids into proteins.
---
→ Endoplasmic Reticulum (ER)
✔️ Correct. Rough ER transports proteins; Smooth ER transports lipids and detoxifies.
---
→ Cytoplasm
✔️ Correct. Gel-like matrix where organelles float and metabolic reactions occur.
---
→ Nucleus
✔️ Correct. Contains DNA and directs cell activities.
---
→ Chloroplast
✔️ Correct. Chloroplasts are responsible for photosynthesis.
---
→ Lysosome
✔️ Correct. Lysosomes contain digestive enzymes to break down waste and pathogens.
---
→ Ribosomes
✔️ Correct. These are attached to the rough ER.
---
→ Vacuole
✔️ Correct. Especially true in plant cells.
---
→ Cell Wall
✔️ Correct. Made of cellulose in plants, chitin in fungi, peptidoglycan in bacteria.
---
→ Mitochondrion
✔️ Correct. Produces ATP via cellular respiration — “powerhouse of the cell.”
---
→ Golgi Apparatus (or Golgi Body)
✔️ Correct. Modifies, sorts, and packages proteins for secretion or delivery.
---
→ Smooth Endoplasmic Reticulum (Smooth ER)
✔️ Correct. Also involved in detoxification and calcium storage.
---
→ Nucleolus
✔️ Correct. Found inside the nucleus; assembles ribosomal subunits.
---
→ Plasma Membrane (or Cell Membrane)
✔️ Correct. Regulates what enters and exits the cell.
---
→ Cytoskeleton
✔️ Correct. Network of protein filaments (microtubules, microfilaments, intermediate filaments) that maintain cell shape and enable movement.
---
## 🟩 Summary: All Answers Are Correct!
Even though #2 is a little ambiguous (since “stacked, flattened sacs” are technically thylakoids/grana, not the whole chloroplast), at the educational level of this worksheet, labeling it as Chloroplast is acceptable and commonly taught.
---
## ✍️ Final Answer Key (for reference):
| # | Structure/Function | Cell Part |
|---|----------------------------------------------------------|------------------------|
| 1 | Stores material within the cell | Vacuole |
| 2 | Closely stacked, flattened sacs (plants only) | Chloroplast |
| 3 | The sites of protein synthesis | Ribosomes |
| 4 | Transports materials within the cell | Endoplasmic Reticulum |
| 5 | Jelly-like substance in the cell | Cytoplasm |
| 6 | Organelle that manages or controls all the cell functions| Nucleus |
| 7 | Contains chlorophyll | Chloroplast |
| 8 | Digests excess or worn-out cell parts | Lysosome |
| 9 | Small bumps located on portions of the ER | Ribosomes |
|10 | Provides temporary storage | Vacuole |
|11 | Firm, protective structure | Cell Wall |
|12 | Produces usable energy | Mitochondrion |
|13 | Packages proteins for transport out of the cell | Golgi Apparatus |
|14 | Produces lipids | Smooth ER |
|15 | Site where ribosomes are made | Nucleolus |
|16 | The membrane surrounding the cell | Plasma Membrane |
|17 | Provides support for the cell | Cytoskeleton |
---
✔ You’re all set! Every answer on the worksheet is correctly matched. If this was an assignment, you’d get full credit. 😊
Let me know if you want a printable version or flashcards for studying!
Let’s go through each numbered item one by one, explain what it does, and assign the correct organelle. We’ll also verify the pre-filled answers.
---
✔ 1. Stores material within the cell
→ Vacuole
✔️ Correctly filled. Vacuoles store water, ions, nutrients, and waste in plant and fungal cells; animal cells have smaller vacuoles.
---
✔ 2. Closely stacked, flattened sacs (plants only)
→ Chloroplast
✘ *Incorrect!* This description refers to thylakoids inside chloroplasts, but the phrase “stacked, flattened sacs” specifically describes grana (which are stacks of thylakoids). However, since “chloroplast” is the larger organelle containing them, and the worksheet says “(plants only)”, it’s likely acceptable. But technically, this is a bit misleading — better to say “contains stacked thylakoids.”
➡️ Still, for middle/high school level, Chloroplast is acceptable here.
---
✔ 3. The sites of protein synthesis
→ Ribosomes
✔️ Correct. Ribosomes read mRNA and assemble amino acids into proteins.
---
✔ 4. Transports materials within the cell
→ Endoplasmic Reticulum (ER)
✔️ Correct. Rough ER transports proteins; Smooth ER transports lipids and detoxifies.
---
✔ 5. Jelly-like substance in the cell
→ Cytoplasm
✔️ Correct. Gel-like matrix where organelles float and metabolic reactions occur.
---
✔ 6. Organelle that manages or controls all the cell functions in a eukaryotic cell
→ Nucleus
✔️ Correct. Contains DNA and directs cell activities.
---
✔ 7. Contains chlorophyll, a green pigment that traps energy from sunlight and gives plants their green color
→ Chloroplast
✔️ Correct. Chloroplasts are responsible for photosynthesis.
---
✔ 8. Digests excess or worn-out cell parts, food particles and invading viruses or bacteria
→ Lysosome
✔️ Correct. Lysosomes contain digestive enzymes to break down waste and pathogens.
---
✔ 9. Small bumps located on portions of the endoplasmic reticulum
→ Ribosomes
✔️ Correct. These are attached to the rough ER.
---
✔ 10. Provides temporary storage of food, enzymes and waste products
→ Vacuole
✔️ Correct. Especially true in plant cells.
---
✔ 11. Firm, protective structure that gives the cell its shape in plants, fungi, most bacteria and some protists
→ Cell Wall
✔️ Correct. Made of cellulose in plants, chitin in fungi, peptidoglycan in bacteria.
---
✔ 12. Produces a usable form of energy for the cell
→ Mitochondrion
✔️ Correct. Produces ATP via cellular respiration — “powerhouse of the cell.”
---
✔ 13. Packages proteins for transport out of the cell
→ Golgi Apparatus (or Golgi Body)
✔️ Correct. Modifies, sorts, and packages proteins for secretion or delivery.
---
✔ 14. Produces lipids
→ Smooth Endoplasmic Reticulum (Smooth ER)
✔️ Correct. Also involved in detoxification and calcium storage.
---
✔ 15. Site where ribosomes are made
→ Nucleolus
✔️ Correct. Found inside the nucleus; assembles ribosomal subunits.
---
✔ 16. The membrane surrounding the cell
→ Plasma Membrane (or Cell Membrane)
✔️ Correct. Regulates what enters and exits the cell.
---
✔ 17. Provides support for the cell
→ Cytoskeleton
✔️ Correct. Network of protein filaments (microtubules, microfilaments, intermediate filaments) that maintain cell shape and enable movement.
---
## 🟩 Summary: All Answers Are Correct!
Even though #2 is a little ambiguous (since “stacked, flattened sacs” are technically thylakoids/grana, not the whole chloroplast), at the educational level of this worksheet, labeling it as Chloroplast is acceptable and commonly taught.
---
## ✍️ Final Answer Key (for reference):
| # | Structure/Function | Cell Part |
|---|----------------------------------------------------------|------------------------|
| 1 | Stores material within the cell | Vacuole |
| 2 | Closely stacked, flattened sacs (plants only) | Chloroplast |
| 3 | The sites of protein synthesis | Ribosomes |
| 4 | Transports materials within the cell | Endoplasmic Reticulum |
| 5 | Jelly-like substance in the cell | Cytoplasm |
| 6 | Organelle that manages or controls all the cell functions| Nucleus |
| 7 | Contains chlorophyll | Chloroplast |
| 8 | Digests excess or worn-out cell parts | Lysosome |
| 9 | Small bumps located on portions of the ER | Ribosomes |
|10 | Provides temporary storage | Vacuole |
|11 | Firm, protective structure | Cell Wall |
|12 | Produces usable energy | Mitochondrion |
|13 | Packages proteins for transport out of the cell | Golgi Apparatus |
|14 | Produces lipids | Smooth ER |
|15 | Site where ribosomes are made | Nucleolus |
|16 | The membrane surrounding the cell | Plasma Membrane |
|17 | Provides support for the cell | Cytoskeleton |
---
✔ You’re all set! Every answer on the worksheet is correctly matched. If this was an assignment, you’d get full credit. 😊
Let me know if you want a printable version or flashcards for studying!
Parent Tip: Review the logic above to help your child master the concept of cell and organelles worksheet.
