The mitochondria and cytoplasm is responsible for cellular respiration and the chloroplast is responsible for pjotosynthesis. Scientists theorize that mitochondria were once bateria themselves since they have their own Dna. They incorporated themselves into our cells to help us make energy. The chloroplast uses sunlight to break the hydrogen off the water and use the hydrogen to transfer electrons.
Respiration. The energy collected in the chloroplasts is used during cellular respiration. ... The carbon dioxide and water produced are transferred back to the chloroplast where they are again used for photosynthesis. Cellular respiration takes place in another organelle called the mitochondria.
