Does a paramecium have a nucleus?
Paramecia have two kinds of nuclei: a large ellipsoidal nucleus called a macronucleus and at least one small nucleus called a micronucleus.
How many nuclei do ciliates have?
Ciliates contain two types of nuclei: somatic “macronucleus” and the germline “micronucleus”.
What is the number of nucleus in the paramecium?
Paramecium have two nuclei (a large macronucleus and a single compact micronucleus).
What are Stentors known for?
It is known for possessing the largest ‘trumpet’ out of all species. A macronucelus within the Stentor is organized in a string of beads that are blue or bluish-green in color. The Stentor has the ability to contract down into a ball. It can also swim while fully extended or in a ball shape.
What is the function of the nucleus in a paramecium?
The large nucleus is called the macronucleus which controls cell activities such as respiration, protein synthesis and digestion. Color the macronucleus red. The much smaller micronucleus is used only during reproduction.
What cell structures are visible in a paramecium?
Visible structures inside the cytoplasm include a small and large nucleus (termed micro- and macronucleus, respectively), food vacuoles, a gullet-oral groove combination, and contractile vacuoles.
Do all ciliates have 2 nuclei?
All ciliates share two features: a coating of cilia on their cell surfaces and two types of nuclei within single cells. The two nuclei types in each ciliate cytoplasm are different sizes; they are called the micronucleus and the macronucleus.
Which movement is seen in paramecium?
Movement. A Paramecium propels itself by whiplash movements of the cilia, which are arranged in tightly spaced rows around the outside of the body.
How do Stentors eat?
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.
How did Stentor get its name?
The name stentor is a reference to its trumpet shape and the herald in Greek mythology known for having a loud voice, while coeruleus describes the blue-green pigment specific to the species.