Protist (biology definition): Any of a group of eukaryotic organisms belonging to the Kingdom Protista. Protists include:
(1) protozoa, the animal-like protists
, (2) algae, the plant-like protists, and (3) slime molds and water molds, the fungus-like protists.
What are characteristics of Kingdom Protista?
- They are eukaryotic, which means they have a nucleus.
- Most have mitochondria.
- They can be parasites.
- They all prefer aquatic or moist environments.
What type of living things are included in the Protista kingdom?
The protists are a diverse group of eukaryotes that cannot be classified as animals, plants, or fungi. Organisms in the Protista kingdom include
amoebae, red algae, dinoflagellates, diatoms, euglena, and slime molds
.
What are the four major types of protists?
- Chrysophytes. This group comprises of the diatoms and golden algae (desmids). …
- Dianoflagellates. These organisms are usually marine and photosynthetic. …
- Euglenoids. These are mostly freshwater organisms. …
- Slime Moulds. Slime moulds are saprophytic protists. …
- Protozoans.
How do you classify protists?
The protists can be classified into one of three main categories, animal-like, plant-like, and fungus-like. Grouping into one of the three categories is based on
an organism’s mode of reproduction, method of nutrition, and motility
.
What do protists look like?
The cells of protists are among the most elaborate of all cells. Most protists are
microscopic and unicellular
, but some true multicellular forms exist. … Still other protists are composed of enormous, multinucleate, single cells that look like amorphous blobs of slime, or in other cases, like ferns.
What are the main characteristics of Kingdom Protista give examples?
- All protists are eukaryotic organisms. …
- Most protists are aquatic, others are found in moist and damp environments.
- Most are unicellular, however, there are a few multicellular protists such as the giant kelp.
- They may be autotrophic or heterotrophic in nature.
Why is Protista not a true kingdom?
Kingdom Protista is not considered a true kingdom
because, this kingdom comprises many organisms, which are related to the kingdoms of fungi, plants and animals
.
What are the two major types of protists?
The animal protists are called
protozoa
. The plant protists are algae. They are single-celled diatoms.
What are the three major types of protists?
- Animal-like protists are called protozoa. Most consist of a single cell. …
- Plant-like protists are called algae. They include single-celled diatoms and multicellular seaweed. …
- Fungus-like protists are molds. They are absorptive feeders, found on decaying organic matter.
What are the benefits of protists?
Plant-like protists
produce almost one-half of the oxygen on the planet through photosynthesis
. Other protists decompose and recycle nutrients that humans need to live. All protists make up a huge part of the food chain.
What are 3 characteristics of plant-like protists?
- Eukaryotic organism.
- There are unicellular (form of yarn / ribbon) and some are multicellular (sheet form).
- Has chlorophyll, so it is autotrophic. …
- Algae / algae bodies are indistinguishable from roots, stems, and leaves.
What defines a protist?
Protist,
any member of a group of diverse eukaryotic, predominantly unicellular microscopic organisms
. … The term protist typically is used in reference to a eukaryote that is not a true animal, plant, or fungus or in reference to a eukaryote that lacks a multicellular stage.
Which best describes the offspring of protists?
Asexual binary fission in protists is one major mechanism of reproduction. A single-celled protist’s body is separated into two parts, or halves. After this process, there is no longer a “parental” body, but a pair of offspring. These offspring are called
daughter nuclei
.
Where can most protists be found?
Most protists can be found in
moist and wet areas
. They can also be found in tree trunks and other organisms.
Can protists be seen by the naked eye?
All types of protista organisms can be studied under a simple light microscope and some,
like fungus
, can be seen with the naked eye.
