Protists vs. Fungi
The main difference between protists and fungi is that the protists are the organisms that have a unicellular organization, whereas the fungi are the organisms that have a multicellular organization.

Key Differences
Protists are very tiny that can only be seen by a simple microscope, while fungi are large enough that can be seen by the human eye.
Protists have cells that are coenocytes, whereas the fungi have cells that are both septate and non-septate.
Protists have a unicellular organization, whereas the fungi have a multicellular organization.
Some of the protists do not contain a cell wall, whereas all the members of kingdom fungi have cell walls.
Protists do not contain compartments in the cytoplasm, whereas the fungi that may or may not contain compartments in the cytoplasm.
Protists are mostly motile, whereas fungi are immoveable.
Some protists cells have cilia and flagella in its structure; on the other hand, fungi do not contain cilia and flagella in its structure.
Some protists have a cell wall like plants, bacteria, and fungi; on the flip side, fungi have a cell wall that is made of chitin.
Protists have advanced osmoregulation; on the other hand, fungi have immature osmoregulation.
In protists, the gene complement of mitochondria remains preserved, whereas, in fungi, the gene complement of mitochondria does not remain preserved.
In protists, the process of getting the nutrients from soil is mixotrophic, whereas, in fungi, the process of getting the nutrients from soil is saprotrophic.
Protists have a cell membrane that is usually varying; on the flip side, fungi have a cell membrane that is made of chitin.
In protists, mitochondria always have preservation of genome, whereas, in fungi, mitochondria always have a reduction of the genome.
Comparison Chart
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Protists are the organisms that have an organization of unicellular and are prokaryotes.
Fungi are the organisms that have an organization of multicellular and are eukaryotes.
Size
Very small that can only see in the microscope
Big enough to be seen with a naked eye.
Cell Wall
Present in some
Present in all
Intercellular Organization
Do not have compartments
Have compartments
Osmoregulation
Highly developed
Developed
Respiration
Aerobic or Anaerobic
Aerobic
Mitochondria
Genome retention
Genome reduction
Outer Structure
Cilia, flagella, etc
Do not have such structures
Septate
Coenocytes
Septate and non-septate
Protists and Fungi Definitions
Protists
Any of numerous eukaryotic organisms that are not fungi, plants, or animals and are chiefly unicellular or colonial. Protists that are multicellular do not have cells differentiated into tissues. The protists include the protozoans, certain algae, oomycetes, and slime molds.
Protists
Plural of protist
Fungi
(pathology) Spongy, abnormal growth, as granulation tissue formed in a wound.
Fungi
Alternative spelling of fungee
Fungi
A style of folk and popular music from the Virgin Islands, traditionally performed by bands consisting of banjo, guitar, ukulele, and washboard with various percussion instruments on rhythm.
Fungi
A group of thallophytic plant-like organisms of low organization, destitute of chlorophyll, in which reproduction is mainly accomplished by means of asexual spores, which are produced in a great variety of ways, though sexual reproduction is known to occur in certain Phycomycetes, or so-called algal fungi. They include the molds, mildews, rusts, smuts, mushrooms, toadstools, puff balls, and the allies of each. In the two-kingdom classification system they were classed with the plants, but in the modern five-kingdom classification, they are not classed as plants, but are classed in their own separate kingdom fungi, which includes the phyla Zygomycota (including simple fungi such as bread molds), Ascomycota (including the yeasts), Basidiomycota (including the mushrooms, smuts, and rusts), and Deuteromycota (the fungi imperfecti). Some of the forms, such as the yeasts, appear as single-celled microorganisms, but all of the fungi are are eukaryotic, thus distinguishing them from the prokaryotic microorganisms of the kingdon Monera.
Fungi
The taxonomic kingdom of lower plants
Fungi
(pun) the one who buys the drinks
Protists vs. Fungi
Protists are the organisms that have an organization of unicellular, whereas the fungi are the organisms that have an organization of multicellular. Protists are very small that can only see in a microscope, while fungi are big enough to be detected by the naked eye, and some are also small species. Some protists have a cell wall of plants and fungi-like; on the flip side, fungi have a cell wall containing chitin.
Some protists do not have a cell wall, whereas all fungi have cell walls. Protists have different intercellular organization from fungi. Protists are coenocytes, whereas the fungi are both septate and coenocytes. Protists have cytoplasm that does not contain compartments, whereas the fungi have cytoplasm that may or may not contain compartments.
Protists are mostly moveable, whereas fungi are immoveable. Protists contain cilia and flagella in some species; on the other hand, fungi do not contain such structures. In protists, the number of genomes of mitochondria remains conserved, whereas, in fungi, the number of genomes of mitochondria does not remain conserved. Protists have highly developed osmoregulation, while fungi have underdeveloped osmoregulation.
In protists, the process of nutrient attainment is mixotrophic, whereas, in fungi, the process of nutrient attainment is saprotrophic. In protists, mitochondria always have genome preservation, whereas, in fungi, mitochondria always have genome reduction. The cell membrane of protists is usually variable, while the cell membrane of fungi is usually chitinous.
What are Protists?
Protists are the organisms that have an organization of unicellular, and its cells are called prokaryotic cells. Some protists have a cell wall, but this structure is not present in all. It is also of variable structure in protists. It has no intercellular organization of like compartments of cytoplasm.
It also has some outer structures like cilia, flagella that helps the protists to move and slide and capture the food. It has a cell membrane of plant, animal, and fungi-like. The process of nutrients attainments is mixotrophic, and several methods are involved in obtaining the food. The respiration in protists is also quite variable.
It can respire through aerobically and anaerobically. The process of osmoregulation in protists is well-developed. The mitochondria in protists are evolved from the ancestors. These mitochondria also have a genome of retention.
It remains the same as got from the ancestors. The hyphae of fungi-like protists are coenocytes. As protists are prokaryotes, that’s they are not highly developed as eukaryotes and do not have some organelles that are present in eukaryotic cells.
What are Fungi?
Fungi are the organisms that have an organization of multicellular, and its cells are called eukaryotic cells. All the fungus group has a cell wall, and it is made of chitin, a special polysaccharide. It has a different kind of intercellular organization such as compartments of cytoplasm and contains septate that are involved in the continuous flow of materials throughout the body of fungi.
Fungi do not have outer structures like cilia, flagella, etc. that’s why fungi are immoveable. The process nutrient attainment in fungi is variable such as saprotrophic, parasitism, carnivorous, etc. It obtains energy from the dead body with the help of rhizoids and haustoria through which the fungi obtain energy from the living body.
The process of respiration in fungi is not very complicated. It simply respires through aerobically, and anaerobic respiration is not present in fungi. The genome of mitochondria also got reduce in fungi.