* Animal cells: All animal cells contain mitochondria.
* Plant cells: Plant cells also contain mitochondria, in addition to chloroplasts.
* Fungal cells: Fungi are eukaryotes and thus their cells contain mitochondria.
* Protist cells: Protists are a diverse group of eukaryotic organisms, and most of them contain mitochondria.
The only eukaryotic cells that lack mitochondria are:
* Red blood cells (erythrocytes): They lose their mitochondria during development to maximize space for hemoglobin, the oxygen-carrying protein.
* Some parasitic protozoa: A few parasitic protozoa have highly reduced or absent mitochondria, often due to their adaptation to living within other cells.
It's important to note that mitochondria are essential for aerobic respiration, which is the process of generating energy from food using oxygen. This process is vital for the survival of most eukaryotic cells.
