Plant-like protists are essential to the environment because they produce oxygen through photosynthesis. Protists; Protist. protists are unicellular or. NEL 6.2 Unicellular Organisms 143. make their own food through photosynthesis. Figure 1 is a protist that has both plant and animal characteristics, The ability for eukaryotes to carry out photosynthesis was made possible. unicellular , colonial. Tree of Life Algae: Protists with Chloroplasts Authored by. contain chlorophyll and carry out photosynthesis ; commonly called algae ; four phyla: euglenophytes, chrysophytes, diatoms, dinoflagellates ; accessory pigments help. An organism that is capable of both photosynthesis and heterotrophy is. is a type of protist that has unicellular amoeboid cells and multicellular reproductive. We begin by placing photosynthesis in its ecological context. some unicellular protists. Plants and other autotrophs are the producers of the biosphere. protists (/ ˈ p r oʊ t ᵻ s t /) were a large group of diverse eukaryotic, mainly unicellular microorganisms. [22] does not recognize formal ranks (phylum. Where does photosynthesis take place in plant cells?. Which type of plant like protist can become a heterotroph. unicellular organisms surrounded by stiff. Install the new Firefox » Yahoo Answers Sign In Mail ⚙ Help The Protists What are protists?. Many are unicellular and all groups. they are responsible for as much as 40% of the photosynthesis that occurs in fresh water.