Table of Contents
What are morphological features of Sarcodines?
The specific morphological appearance of various Sarcodina is a dynamic product of their protoplasmic activities and movements. The amoebae of the ocean resemble those of fresh- water ponds and streams, and the same group of charac- ters can be used to distinguish them. The amoebae of the ocean are not yet well known.
What do Sarcodina do?
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.
What are two characteristics of the phylum Sarcodina?
Sarcodina, the largest phylum (11,500 living species and 33,000 fossil species) of protozoans). It comprises the amebas and related organisms; which are all solitary cells that move and capture food by means of pseudopods, flowing temporary extensions of the cell. Most sarcodines are free living; others are parasitic.
What is an example of Sarcodina?
What are the types of Sarcodines?
How do Zooflagellates move?
Zooflagellates are a third type of protists. They are animal-like and move by using flagella. Flagella are whip-like structures that spin quickly, working like a boat’s propeller to move the organism through water. Most zooflagellates have from one to eight flagella that help them move.
What is an example of Sporozoans?
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. An example of sporozoan is the Plasmodium falciparum, which is the causative agent of malaria.
How does an Heliozoans move?
Some Heliozoa traverse the bottom with a unique tumbling motion resulting from controlled changes in the length of the axopods. Many sessile forms with stalks are known. In sessile forms, cell division is likely to be unequal, producing a dispersal stage that may be flagellated or amoeboid.
How do Sporozoans move?
Motility. Unlike the adult/mature forms of some protozoa, sporozoans do not have flagella or cilia used for locomotion. For this reason, they depend on gliding, twisting, and bending to move.
What is the example of Sporozoans?
What protist uses cilia to move?
The ciliates are protists that move by using cilia. Cilia are thin, very small tail-like projections that extend outward from the cell body. Cilia beat back and forth, moving the protist along. Paramecium has cilia that propel it.
Are Sporozoans Endoparasites?
(i) All sporozoans are endoparasites.