Labeled diagram of an animal cell showing key organelles and structures.

Let me work through this animal cell labeling problem step by step.

Looking at the diagram and the word bank provided, I need to match each organelle with its correct label based on their appearance and location in the cell.

Step-by-step identification:

1. Cell membrane - This is the outer boundary of the cell (the red line around the entire cell)

2. Cytoplasm - This is the pink fluid that fills the inside of the cell where all organelles are suspended

3. Nucleus - The large orange circular structure in the center of the cell

4. Nucleolus - The small red circle inside the nucleus

5. Nuclear envelope - The membrane surrounding the nucleus

6. Mitochondrion - The green oval-shaped structures with internal folds (there are several of these scattered throughout)

7. Golgi apparatus - The yellow stacked curved membranes near the top

8. Endoplasmic reticulum - The blue network of membranes connected to the nuclear envelope

9. Ribosome - The small orange dots scattered throughout (some free-floating, some attached to endoplasmic reticulum)

10. Lysosome - The small blue circular structures (vesicles)

Now let me verify this matches with what's visible in the diagram and the word bank provided: lysosome, ribosome, golgi apparatus, nucleus, nucleolus, mitochondrion, cell membrane, nuclear envelope, cytoplasm, endoplasmic reticulum.

All terms from the word bank have been accounted for and matched to their corresponding structures in the diagram.

Final Answer:

The labels for the animal cell are:
- Cell membrane: Outer boundary of the cell
- Cytoplasm: Pink fluid filling the cell interior
- Nucleus: Large central orange circular structure
- Nucleolus: Small red circle inside the nucleus
- Nuclear envelope: Membrane surrounding the nucleus
- Mitochondrion: Green oval structures with internal folds
- Golgi apparatus: Yellow stacked curved membranes
- Endoplasmic reticulum: Blue network of membranes
- Ribosome: Small orange dots
- Lysosome: Small blue circular vesicles