What do animal cells contain that plant cells do not?

Animal cells contain centrioles, which play a crucial role in cell division. These structures are cylindrical and composed of microtubules, helping to organize the mitotic spindle during mitosis, ensuring proper chromosome separation. This function is vital for the reproduction of animal cells.

In contrast, plant cells do not have centrioles, as they utilize a different mechanism for cell division that does not require these structures. Instead, plant cells have a rigid cell wall, chloroplasts for photosynthesis, and prominent vacuoles for storing nutrients and waste products. These differences illustrate the unique adaptations of plant and animal cells to their specific functions and environments.