Which two structures are found only in plant cells?

The presence of a cell wall and chloroplasts is exclusive to plant cells, making this choice the correct answer. The cell wall provides structural support and protection to the plant cell, helping maintain its shape and prevent excessive water intake, which is particularly important in a variety of environmental conditions. Additionally, chloroplasts are specialized organelles that perform photosynthesis, allowing plants to convert light energy into chemical energy in the form of glucose, which is essential for their growth and energy needs.

In contrast, other options include structures that are found in both plant and animal cells, such as the cell membrane and the nucleus, as well as those that are present in all eukaryotic cells, like mitochondria and ribosomes. Vesicles and lysosomes also play roles in various cellular functions across different cell types, not limited to plants.