What type of protist is zoomastigina

Roksana Tzah Pundit. How are protozoans divided into groups? The taxonomic kingdom Protista is a collection of single-celled organisms that do not fit into any other category.

Protists are a group made up of protozoa , unicellular algae, and slime molds. The protozoa are divided into four major groups : the ciliates, the flagellates, the heliozoans, and the amoebas. Yang Essalhi Pundit. What is protist conjugation? Conjugation [1] is a type of sexual reproduction found in lower organisms such as Bacteria Monera , Algae Plantae; Thallophyta and Protists.

Conjugation process involves the transfer of genetic material from one cell to the other via conjugation bridge. Both bacteria and algae Spirogyra sp. Deena Dunkert Teacher.

What are Pseudopods and how do protists use them? Most protists move with the help of flagella, pseudopods , or cilia. Some protists , like the one-celled amoeba and paramecium, feed on other organisms. Others, such as the one-celled euglena or the many-celled algae, make their food by photosynthesis.

They use pseudopods to move away from bright light or to trap food. Floreal Forakis Supporter. Which two phyla have organisms with flagella? Members of the phylum Mastigophora move about by using one or more whiplike flagella. The genus Euglena contains flagellated species.

Members are freshwater protists with typical eukaryotic properties, including two flagella , reproduction by mitosis, and flexible nutritional requirements.

Geertje Pagadi Supporter. It lives in the bloodstream of its host, later invading the central nervous system. Since it is blood-borne, Trypanosoma gambiense is easily transmitted by the blood- sucking tsetse fly.

The parasites are drawn up with the blood into the intestines of the fly. There they undergo a physiological change that allows them to invade the fly's salivary glands. After this happens, every animal the fly bites receives an injection of the parasite. Ciliates move by means of rows of cilia. These hair-like structures are connected at their bases to a system of contractile fibers similar to a muscular system in higher animals.

This allows the cilia to beat in a given pattern, either to move the cell or to wash food particles toward a primitive mouth. The structure of the paramecium is shown in the figure above.

The cell membrane is covered with rows of cilia that beat rhythmically to wash food toward the oral groove where it will be packaged in special food vacuoles for digestion. Like all ciliates, and unlike any other group of protozoa, the paramecium has two types of nuclei. The macronucleus maintains cell growth and function by producing messenger RNA and can have hundreds of copies of the cell's DNA. In truth, the classification of the protists remains in flux.

This chapter provides descriptions of representative members of the Protista group and their roles in our lives and the environment, using the still-accepted kingdom and phyla nomenclature. Members of the kingdom Protista are a highly varied group of organisms, all of which are eukaryotic. In addition, protists are unicellular or, in some cases, colonial. Many species are autotrophs, creating their own food, while others are heterotrophs, feeding on organic matter. Many species are nonmotile, but the majority of protists are able to move by various means.

Many protists have contractile vacuoles, which help them to remove excessive amounts of water from their cytoplasm. The kingdom Protista includes the protozoa, slime molds, and algae. Protozoa can be divided into four phyla based on their locomotion: Mastigophora, Sarcodina, Ciliophora, and Sporozoa. Members of the phylum Mastigophora move about by using one or more whiplike flagella. The genus Euglena contains flagellated species. Members are freshwater protists with typical eukaryotic properties, including two flagella, reproduction by mitosis, and flexible nutritional requirements.

Euglena species also possess chlorophyll within chloroplasts. This pigment allows the organisms to synthesize organic compounds in the presence of sunlight.

When no sunlight is available, the organism feeds on dead organic matter in the surrounding environment. Thus, the organism is autotrophic and heterotrophic. Refer to the illustration Paramecium conjugation for a pictorial representation. Because no offspring or fertilized eggs are produced, technically, sexual reproduction did not occur, but gametes were exchanged by mature adults, resulting in a new genetic complement for both paramecia!

Paramecia also contain most organelles that more advanced life-forms utilize. For instance, in addition to the mitochondria and nucleus, they also use food vacuoles containing digestive enzymes, an anal pore for waste removal, and contractile or water vacuoles for water transportation. Zoomastigina , also known as flagellates, are known for their specialized flagella , which are whiplike structures that propel the flagellates through their aquatic environment. Typically flagellates have only one flagella, but may have up to four working in sync.

Although most flagellates are harmless, simply surrounding and engulfing their food, others are human parasites. One of the most interesting parasites is the trypanosome , which causes African sleeping sickness. The symptoms are well known: fever, chills, and skin rash. Affected individuals become very weak, unconscious, and may fall into a fatal coma. The trypanosome is transmitted by the tsetse fly and lives in the bloodstream, and continually change their surface molecular structure to gain invisibility to the host's immune system and remain undetected in attacks on the host.

The disease attacks the nervous system of infected individuals. The three plantlike protists all contain chlorophyll, and as autotrophs utilize photosynthesis to make their own energy.

They are generally multicellular and mobile, usually flagella assisted, inhabit wet or aquatic territories, and do not have true roots, stems, or leaves, but are considered to be a type of algae:.

Euglenophytes are also known as green algae and are structurally similar to Zoomastigina because both utilize flagella and have common structures. However, the euglenophytes also contain chloroplasts and undergo photosynthesis.

The euglena is a typical euglenophyte, even lending its name to the phylum. Euglenas contain an eyespot, which does not focus as an eye, but does differentiate light from dark and allows a euglena to move toward a light source for greater photosynthetic opportunities.

They are also capable swimmers with two flagella, which is important because they can then inhabit diverse aquatic territories.