Choloroplasts are unique to plant cells. They are used to absorb light energy, which animals don’t. Therefore plants contain chloroplasts and animals don’t.
Structurally, plant and animal cells are very similar because they are both eukaryotic cells. They both contain membrane-bound organelles such as the nucleus, mitochondria, endoplasmic reticulum,golgi apparatus, lysosomes, and peroxisomes.
