Animallike protists that swim using flagella are classified in the phylum Zoomastigina and are often referred to as zooflagellates. Sarcodines are animallike protists that use pseudopods for feeding and movement. Some animallike protists cause serious diseases, including malaria and African sleeping sickness.

Zoomastigina move through their enviroments by being propelled by flagella. Flagella are long, whiplike projections that move an organism.

Within phylum Zoomastigina we find protozoans that are known as flagellates.

Kingdom Protista

Found in freshwater, marine, & moist soil habitats Their cytoplasm consists of clear, outer ectoplasm and granular, inner endoplasm. Move by extending cytoplasm (cytoplasmic streaming) Cytoplasm extensions are called “false foot” or pseudopods.

: a subclass of Mastigophora that comprises holozoic or saprozoic flagellates lacking chromatophores and stigma and that includes the orders Hypermastigina, Polymastigina, Protomonadina, and Rhizomastigina — compare phytomastigina.

Sarcodines reproduce sexually by syngamy (fusion of two gametes) and asexually by division or budding. In multinucleate forms, cytoplasmic division with distribution of the nuclei occurs.

Zooflagellates assimilate organic material by osmotrophy (absorption through the plasma membrane) or phagotrophy (engulfing prey in food vacuoles). Zooflagellates exhibit a considerable variation in form, and they may be free-living, symbiotic, commensal, or parasitic in humans and other animals and in certain plants.

The sporozoans comprise the phylum Sporozoa. Sporozoans are organisms that are characterized by being one-celled, non-motile, parasitic, and spore-forming. Most of them have an alternation of sexual and asexual stages in their life cycle.

Diplomonad

Zooflagellates are non-photosynthetic flagellates without plastids or cell walls which feed by phagocytosis or endocytosis. They are the most diverse of all eukaryotes and gave rise directly or indirectly to most, if not all, other groups of eukaryotes.

Rhizopoda

The Sarcodina are the amoeboid protozoa which trap food by some form of pseudopodial action, pseudopodia which range from the single blunt lobopodium to the delicate tracery of reticulopodia which pro- ject from a foraminiferan shell. Both are designed to perform the same function, to trap food.

Something that’s ciliated is covered in microscopic projections that look like tiny hairs. Ciliated is pronounced “SIH-lee-ay-ted.” This adjective describes something that has tiny hair-like projections called cilia.

Brain-eating amoeba

All ciliates have cilia which they use for swimming, crawling, feeding, and touching. They feed on bacteria, algae, and other small food particles. Ciliates tend to be large protozoa, with a few species reaching 2 mm in length.

Ciliate: an organism that uses cilia for locomotion. Flagellum: a single hair-like structure that assists an organism with locomotion. Flagellate: an organism that uses a flagellum for locomotion.

They are green because they make use of a symbiotic green algae called Chlorella. The page about Green algae will show these algae in Close up. Ciliates usually multiply asexually by fission. These two ciliates of the genus Spirostomum cling to each other side by side and fuse together.

A pseudopod forms when the endoplasm, the inner portion of the cytoplasm, pushes the ectoplasm, the outer layer forward to create a blunt, armlike extension. Amoeba use their pseudopods to engulf their prey and trap them in food vacuoles, sending them through a process called endocytosis.

Amoeba can move in all directions using false feet called pseudopodia. It can change its shape with the help of these pseudopodia to exhibit locomotion. Hence, pseudopodia are known as a false foot in Amoeba, Food vacuole and water vacuole are used for the storage of food and water respectively.

Amoeba, also spelled ameba, plural amoebas or amoebae, any of the microscopic unicellular protozoans of the rhizopodan order Amoebida. The well-known type species, Amoeba proteus, is found on decaying bottom vegetation of freshwater streams and ponds.

Pseudopods, or false feet, are found in many protozoa from the brain-eating amoeba to the radiolaria. Protozoa are single-celled critters that have to consume food. Although pseudopods come in a variety of shapes and forms, they have the same function in protozoa: movement and to capture prey.

Pseudopodia are formed by some cells of higher animals (e.g., white blood corpuscles) and by amoebas. During amoeboid feeding, pseudopodia either flow around and engulf prey or trap it in a fine, sticky mesh.

Pseudopods (which translates to “false feet”) are temporary cytoplasm-filled parts of the cell wall that are able to change their form in order to move. They are used in some eukaryotic cells to move around or to eat. Most cells that do this are called amoeboids. The amoeba is a common example.

Amoeba and sarcodines are examples of protists that move by pseudopods.