* Chloroplasts are the organelles responsible for photosynthesis, the process by which plants convert light energy into chemical energy. Animal cells do not need to perform photosynthesis and therefore lack chloroplasts.

Here are some other structures found in plant cells but not animal cells:

* Cell wall: A rigid structure that provides support and protection for the plant cell.

* Large central vacuole: A large, fluid-filled sac that helps maintain cell turgor pressure and stores various substances.

Let me know if you have any other questions!