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

To solve this problem, we need to match the numbers on the cell diagram with the correct names from the list provided. Let's go through them one by one based on standard animal cell structures:

1. Number 1 points to a small, circular sac inside the cytoplasm. Looking at the list, Lysosome fits this description. Lysosomes are small organelles that contain digestive enzymes.
2. Number 2 points to the dark, dense structure inside the large central circle (the nucleus). This is the Nucleolus, where ribosomes are made.
3. Number 3 points to the large, central spherical structure that contains the nucleolus. This is the control center of the cell, called the Nucleus.
4. Number 4 points to a stack of flattened sacs. This distinctive shape belongs to the Golgi Body (or Golgi apparatus), which packages proteins.
5. Number 5 points to a network of folded membranes surrounding the nucleus. This is the Endoplasmic Reticulum (ER).
6. Number 6 points to the outer boundary of the cell. In an animal cell, this is the Cell Membrane.
7. Number 7 points to two cylinder-shaped structures near the nucleus, arranged at right angles to each other. These are the Centrioles, which help in cell division.
8. Number 8 points to tiny dots scattered in the cytoplasm and on the ER. These are Ribosomes, the sites of protein synthesis.
9. Number 9 points to the long, thin fibers running through the cell. These provide structure and shape, known as Microtubules (part of the cytoskeleton).
10. Number 10 points to the jelly-like substance filling the space between organelles. This is the Cytoplasm.
11. Number 11 points to the bean-shaped organelle with inner folds. This is the Mitochondria, the powerhouse of the cell.

Let's double-check the matches against the provided key:
1 - Lysosome
2 - Nucleolus
3 - Nucleus
4 - Golgi Body
5 - Endoplasmic Reticulum
6 - Cell Membrane
7 - Centrioles
8 - Ribosome
9 - Microtubules
10 - Cytoplasm
11 - Mitochondria

Everything matches perfectly with standard biology diagrams.

Final Answer:
1. LYSOSOME
2. NUCLEOLUS
3. NUCLEUS
4. GOLGI BODY
5. ENDOPLASMIC RETICULUM
6. CELL MEMBRANE
7. CENTRIOLES
8. RIBOSOME
9. MICROTUBULES
10. CYTOPLASM
11. MITOCHONDRIA