Table of Contents
Is a Stentor autotrophic or heterotrophic?
Stentor, sometimes called trumpet animalcules, are a genus of filter-feeding, heterotrophic ciliates, representative of the heterotrichs.
How does the Stentor feed?
Stentors, like most ciliates, are filter feeders; passively eating whatever happens to be swept in their direction. They normally eat bacteria and algae, though large stentors are reported to opportunistically eat rotifers or anything else that they can catch.
Is Stentor eukaryotic or prokaryotic?
Finally, as we learned in the previous section, all protists are eukaryotic, meaning they have a defined nucleus. Because the Stentor organisms are relatively large for unicellular beings, they actually have a macronucleus that stretches the length of the body.
Is a Stentor a sessile?
When feeding, the cell is fixed in place (sessile), attached by a posterior “holdfast” organelle to a firm surface such as plant stem or submerged detritus. Attached specimens are trumpet-shaped, and very contractile. It is a colourless species, with no pigmentation in the cell cortex.
Is Stentor photosynthetic or heterotrophic?
Stentor are omnivorous heterotrophs. Typically, they feed on bacteria or other protozoans. Because of their large size, they are also capable of eating some of the smallest multicelluar organisms, such as rotifers. Stentor typically reproduces asexually through binary fission.
Is Stentor phytoplankton or zooplankton?
In four of 13 lakes, Stentor was an important constituent of the plankton community and contributed significantly to the total zooplankton biomass.
Is Stentor a prokaryote?
Is Stentor a phytoplankton?
What Kingdom is a Stentor in?
| Stentor | |
|---|---|
| Domain: | Eukarya |
| Kingdom: | Chromalveolata |
| Superphylum: | Alveolata |
| Phylum: | Ciliophora |
What kind of environment does the Stentor live in?
Stentor is a member of the phylum Ciliophora. The organisms in this phylum are commonly known as ciliates and live in aquatic environments. They are unicellular and bear hair-like structures called cilia on at least some part of their body. The cilia beat and move the surrounding fluid.
What kind of protozoan is a Stentor?
Ciliophora: Protozoans that Move with Cilia. Stentor is a very large ciliate measuring from 500-2000 microns long when extended. There are a variety of species of Stentor. Stentor coeruleus is a very large trumpet shaped, blue to blue-green ciliate with a macronucleus that looks like a string of beads (dark connected dots on the left).
How are Stentor organisms different from other organisms?
When they are disturbed or free-swimming, they appear to be pear-shaped and globular instead of trumpet-shaped. Stentor organisms also come in a variety of colors, and move through the use of small, hair-like extensions found all over the body.
Why are Stentor Critters so fascinating to scientists?
There are a few critical pieces of anatomy that are important to understand why Stentor critters are so fascinating. First, Stentor organisms are shaped like little trumpets when they are attached to other organisms, making them easy to identify. They often anchor themselves to plants or dead plant matter found in the water.