Cell Organelles Worksheet KEY | PDF | Cell (Biology) | Cell Membrane - Free Printable

It looks like you've uploaded an image of a biology worksheet with two diagrams: one of an animal cell and one of a plant cell, each with labeled parts to be filled in using a word bank. Since I can't view images directly, I’ll help you solve the labeling based on standard cell biology knowledge and the provided word banks.

Let’s go step by step.

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🔹 First Diagram: Animal Cell

Word Bank (for animal cell):
- mitochondria
- cytoplasm
- smooth ER
- ribosomes
- centriole
- rough ER
- Golgi apparatus
- nucleus
- cell membrane
- small vacuole
- lysosome
- vesicle

Now, let's identify the structures in the animal cell diagram based on typical appearance:

1. Outer boundary of the cell → cell membrane
2. Large central structure with a dark spot (nucleolus) → nucleus
3. Network of tubes with little dots on it (ribosomes) → rough ER
4. Network of tubes without dots → smooth ER
5. Stacked flattened sacs (like pancakes) → Golgi apparatus
6. Small round structures attached to rough ER or free in cytoplasm → ribosomes
7. Double-membraned organelles with inner folds (cristae) → mitochondria
8. Small spherical structures near the nucleus → centriole (usually in pairs)
9. Tiny vesicles transporting materials → vesicle
10. Small bubble-like structure → small vacuole
11. Digestive organelle (often small and purple) → lysosome
12. Jelly-like substance filling the cell → cytoplasm

> ✔ Make sure to type exactly as listed in the word bank — for example, "small vacuole" not "vacuole".

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🔹 Second Diagram: Plant Cell

Word Bank (for plant cell):
- mitochondria
- cytoplasm
- smooth ER
- ribosome
- rough ER
- Golgi apparatus
- nucleus
- cell membrane
- large vacuole
- chloroplast
- cell wall

Plant cells have:
- A rigid outer layer → cell wall
- A large central vacuole → large vacuole
- Green organelles for photosynthesis → chloroplast
- All other organelles similar to animal cells

So, labeling:

1. Outermost rigid layer → cell wall
2. Just inside cell wall, thin layer → cell membrane
3. Large central bubble → large vacuole
4. Green oval structures → chloroplast
5. Double-membraned with folds → mitochondria
6. Central nucleus with nucleolus → nucleus
7. Cytoplasmic fluid → cytoplasm
8. Ribosomes (tiny dots) → ribosome
9. Rough ER (with ribosomes) → rough ER
10. Smooth ER (no ribosomes) → smooth ER
11. Stacked sacs → Golgi apparatus
12. Vesicles → vesicle (if shown)

> Note: "ribosome" is singular in the word bank, so use ribosome, not "ribosomes".

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✔ Final Answer Guide:

#### Animal Cell Labels (from top to bottom, left to right):

1. cell membrane
2. mitochondria
3. lysosome
4. small vacuole
5. centriole
6. rough ER
7. smooth ER
8. Golgi apparatus
9. nucleus
10. ribosomes
11. cytoplasm
12. vesicle

> *(Exact placement depends on your diagram, but these are the correct terms.)*

#### Plant Cell Labels:

1. cell wall
2. cell membrane
3. large vacuole
4. chloroplast
5. mitochondria
6. nucleus
7. cytoplasm
8. ribosome
9. rough ER
10. smooth ER
11. Golgi apparatus
12. vesicle

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💡 Tips:
- Type exactly as in the word bank (e.g., “small vacuole” not “vacuole”).
- Use “ribosome” (singular) for plant cell.
- Avoid adding extra words or spaces.

If you can describe where each label goes (e.g., “top right,” “bottom left”), I can give you the exact match. But based on standard diagrams, this should cover it!

Let me know if you'd like a printable version or need help matching specific arrows!