No, it doesn’t occur in the same organelle or organism. Chloroplast is the organelle where Photosynthesis occur, while Mitochondria is the organism/organelle where cellular respiration occur. Photosynthesis happens in the plant kingdom called for example a sun flower uses the process of photosynthesis to make food for itself. Cellular respiration is a chemical process in the mitochondria that makes energy out of sugar and oxygen creating ATP.