👉 Haematophytes are a group of plants that have evolved to produce their own food and oxygen through photosynthesis. These plants include green, red, and blue-green algae, as well as some fungi. They use chloroplasts, which are organelles found in the cell membrane that contain pigments called chlorophyll. Chlorophyll is responsible for converting sunlight into chemical energy, which can be used to power plant growth and photosynthesis. Haematophytes are important because