1. Photosynthetic Plants: Photosynthesis occurs in bacteria containing photosynthetic pigments, algae, blue-green algae and all plants containing chlorophyll.
2. Photosynthesizing stems: Photosynthesis takes place in young stems, green stems with chlorophyll, leafy stems of radishes, gourds, pumpkins, ferns, etc.
3. Photosynthesizing roots: Photosynthesis takes place in the assimilating roots of golanches and aerial roots of orchids.
4. Photosynthetic Unicellular Organisms: Photosynthesis takes place in unicellular organisms like Euglena, Chlorella, Chrysamiba etc.
5. Plants incapable of photosynthesis: Photosynthesis does not occur in organisms such as parasites, dead organisms, fungi.