Table of Contents
What are 4 characteristics of protists?
A few characteristics are common between protists.
- They are eukaryotic, which means they have a nucleus.
- Most have mitochondria.
- They can be parasites.
- They all prefer aquatic or moist environments.
What are the 4 different categories of these protists?
Kelps (brown algae) are the only multicellular protists. 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 protists surrounded by?
Single protist cells range in size from less than a micrometer to three meters in length to hectares! Protist cells may be enveloped by animal-like cell membranes or plant-like cell walls. Others are encased in glassy silica-based shells or wound with pellicles of interlocking protein strips.
What are the 3 protists?
Protists are a diverse kingdom, including all eukaryotic organisms that are neither animals, nor plants, nor fungi. For classification, the protists are divided into three groups: animal-like protists, plant-like protists, and fungi-like protists.
How are protists related to other eukaryotes quizlet?
Protists are eukaryotes that are not members of the plant, animal, or fungi kingdoms. How are protists related to other eukaryotes? Today’s protists include groups whose ancestors were among the very last to split from organisms that gave rise to plants, animals, and fungi. Some protists reproduce asexually by mitosis.
Why is Protista no longer a kingdom?
Protista polyphyletic: some protists are more closely related to plants, fungi or animals than they are to other protists; it was too diverse, so it no longer a single kingdom.
Which represents major grouping of protists?
Plant-like protists are called algae (singular, alga). They are a large and diverse group. Some algae, diatoms, are single-celled….Classification of Algae.
| Type of Algae | Origin of Chloroplast | Type of Chloroplast |
|---|---|---|
| Euglenids [Figure 9] | green algae | three membranes, chlorophyll like green algae |
What is the whip like tail that some protists use to propel themselves called?
flagellum
(c) Euglena uses a whip-like tail called a flagellum to propel itself. Some protists can move toward or away from a stimulus, a movement referred to as taxis.
Which represents major groupings of protists?
Major Groups 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.
Which is the best definition of intercalary 1A?
Definition of intercalary 1a : inserted in a calendar an intercalary day b of a year : containing an intercalary period (such as a day or month)
Where is the intercalary meristem located in a plant?
Intercalary meristem as suggested by its name is found in the internodes and in the intercalary positions of the leaf. Further, this aids in increasing the height of the plant along with the help of the apical meristem. As a result, the intercalary meristem is also a part of the apical meristem.
How are protists different from other eukaryotes?
While it is likely that protists share a common ancestor (the last eukaryotic common ancestor ), the exclusion of other eukaryotes means that protists do not form a natural group, or clade.